1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * QLogic Fibre Channel HBA Driver
4 * Copyright (c)  2003-2014 QLogic Corporation
5 */
6#include "qla_def.h"
7#include "qla_target.h"
8
9#include <linux/delay.h>
10#include <linux/slab.h>
11#include <linux/cpu.h>
12#include <linux/t10-pi.h>
13#include <scsi/scsi_tcq.h>
14#include <scsi/scsi_bsg_fc.h>
15#include <scsi/scsi_eh.h>
16#include <scsi/fc/fc_fs.h>
17#include <linux/nvme-fc-driver.h>
18
19static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
20static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
21static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
22static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
23	sts_entry_t *);
24static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
25	struct purex_item *item);
26static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
27	uint16_t size);
28static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
29	void *pkt);
30static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
31	void **pkt, struct rsp_que **rsp);
32
33static void
34qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
35{
36	void *pkt = &item->iocb;
37	uint16_t pkt_size = item->size;
38
39	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
40	       "%s: Enter\n", __func__);
41
42	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
43	       "-------- ELS REQ -------\n");
44	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
45		       pkt, pkt_size);
46
47	fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt);
48}
49
50const char *const port_state_str[] = {
51	"Unknown",
52	"UNCONFIGURED",
53	"DEAD",
54	"LOST",
55	"ONLINE"
56};
57
58static void
59qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
60{
61	struct abts_entry_24xx *abts =
62	    (struct abts_entry_24xx *)&pkt->iocb;
63	struct qla_hw_data *ha = vha->hw;
64	struct els_entry_24xx *rsp_els;
65	struct abts_entry_24xx *abts_rsp;
66	dma_addr_t dma;
67	uint32_t fctl;
68	int rval;
69
70	ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
71
72	ql_log(ql_log_warn, vha, 0x0287,
73	    "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
74	    abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
75	    abts->seq_id, abts->seq_cnt);
76	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
77	    "-------- ABTS RCV -------\n");
78	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
79	    (uint8_t *)abts, sizeof(*abts));
80
81	rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
82	    GFP_KERNEL);
83	if (!rsp_els) {
84		ql_log(ql_log_warn, vha, 0x0287,
85		    "Failed allocate dma buffer ABTS/ELS RSP.\n");
86		return;
87	}
88
89	/* terminate exchange */
90	rsp_els->entry_type = ELS_IOCB_TYPE;
91	rsp_els->entry_count = 1;
92	rsp_els->nport_handle = cpu_to_le16(~0);
93	rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
94	rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
95	ql_dbg(ql_dbg_init, vha, 0x0283,
96	    "Sending ELS Response to terminate exchange %#x...\n",
97	    abts->rx_xch_addr_to_abort);
98	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
99	    "-------- ELS RSP -------\n");
100	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
101	    (uint8_t *)rsp_els, sizeof(*rsp_els));
102	rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
103	if (rval) {
104		ql_log(ql_log_warn, vha, 0x0288,
105		    "%s: iocb failed to execute -> %x\n", __func__, rval);
106	} else if (rsp_els->comp_status) {
107		ql_log(ql_log_warn, vha, 0x0289,
108		    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
109		    __func__, rsp_els->comp_status,
110		    rsp_els->error_subcode_1, rsp_els->error_subcode_2);
111	} else {
112		ql_dbg(ql_dbg_init, vha, 0x028a,
113		    "%s: abort exchange done.\n", __func__);
114	}
115
116	/* send ABTS response */
117	abts_rsp = (void *)rsp_els;
118	memset(abts_rsp, 0, sizeof(*abts_rsp));
119	abts_rsp->entry_type = ABTS_RSP_TYPE;
120	abts_rsp->entry_count = 1;
121	abts_rsp->nport_handle = abts->nport_handle;
122	abts_rsp->vp_idx = abts->vp_idx;
123	abts_rsp->sof_type = abts->sof_type & 0xf0;
124	abts_rsp->rx_xch_addr = abts->rx_xch_addr;
125	abts_rsp->d_id[0] = abts->s_id[0];
126	abts_rsp->d_id[1] = abts->s_id[1];
127	abts_rsp->d_id[2] = abts->s_id[2];
128	abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
129	abts_rsp->s_id[0] = abts->d_id[0];
130	abts_rsp->s_id[1] = abts->d_id[1];
131	abts_rsp->s_id[2] = abts->d_id[2];
132	abts_rsp->cs_ctl = abts->cs_ctl;
133	/* include flipping bit23 in fctl */
134	fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
135	    FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
136	abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
137	abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
138	abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
139	abts_rsp->type = FC_TYPE_BLD;
140	abts_rsp->rx_id = abts->rx_id;
141	abts_rsp->ox_id = abts->ox_id;
142	abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
143	abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
144	abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
145	abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
146	ql_dbg(ql_dbg_init, vha, 0x028b,
147	    "Sending BA ACC response to ABTS %#x...\n",
148	    abts->rx_xch_addr_to_abort);
149	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
150	    "-------- ELS RSP -------\n");
151	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
152	    (uint8_t *)abts_rsp, sizeof(*abts_rsp));
153	rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
154	if (rval) {
155		ql_log(ql_log_warn, vha, 0x028c,
156		    "%s: iocb failed to execute -> %x\n", __func__, rval);
157	} else if (abts_rsp->comp_status) {
158		ql_log(ql_log_warn, vha, 0x028d,
159		    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
160		    __func__, abts_rsp->comp_status,
161		    abts_rsp->payload.error.subcode1,
162		    abts_rsp->payload.error.subcode2);
163	} else {
164		ql_dbg(ql_dbg_init, vha, 0x028ea,
165		    "%s: done.\n", __func__);
166	}
167
168	dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
169}
170
171/**
172 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
173 * @irq: interrupt number
174 * @dev_id: SCSI driver HA context
175 *
176 * Called by system whenever the host adapter generates an interrupt.
177 *
178 * Returns handled flag.
179 */
180irqreturn_t
181qla2100_intr_handler(int irq, void *dev_id)
182{
183	scsi_qla_host_t	*vha;
184	struct qla_hw_data *ha;
185	struct device_reg_2xxx __iomem *reg;
186	int		status;
187	unsigned long	iter;
188	uint16_t	hccr;
189	uint16_t	mb[8];
190	struct rsp_que *rsp;
191	unsigned long	flags;
192
193	rsp = (struct rsp_que *) dev_id;
194	if (!rsp) {
195		ql_log(ql_log_info, NULL, 0x505d,
196		    "%s: NULL response queue pointer.\n", __func__);
197		return (IRQ_NONE);
198	}
199
200	ha = rsp->hw;
201	reg = &ha->iobase->isp;
202	status = 0;
203
204	spin_lock_irqsave(&ha->hardware_lock, flags);
205	vha = pci_get_drvdata(ha->pdev);
206	for (iter = 50; iter--; ) {
207		hccr = rd_reg_word(&reg->hccr);
208		if (qla2x00_check_reg16_for_disconnect(vha, hccr))
209			break;
210		if (hccr & HCCR_RISC_PAUSE) {
211			if (pci_channel_offline(ha->pdev))
212				break;
213
214			/*
215			 * Issue a "HARD" reset in order for the RISC interrupt
216			 * bit to be cleared.  Schedule a big hammer to get
217			 * out of the RISC PAUSED state.
218			 */
219			wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
220			rd_reg_word(&reg->hccr);
221
222			ha->isp_ops->fw_dump(vha);
223			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
224			break;
225		} else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
226			break;
227
228		if (rd_reg_word(&reg->semaphore) & BIT_0) {
229			wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
230			rd_reg_word(&reg->hccr);
231
232			/* Get mailbox data. */
233			mb[0] = RD_MAILBOX_REG(ha, reg, 0);
234			if (mb[0] > 0x3fff && mb[0] < 0x8000) {
235				qla2x00_mbx_completion(vha, mb[0]);
236				status |= MBX_INTERRUPT;
237			} else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
238				mb[1] = RD_MAILBOX_REG(ha, reg, 1);
239				mb[2] = RD_MAILBOX_REG(ha, reg, 2);
240				mb[3] = RD_MAILBOX_REG(ha, reg, 3);
241				qla2x00_async_event(vha, rsp, mb);
242			} else {
243				/*EMPTY*/
244				ql_dbg(ql_dbg_async, vha, 0x5025,
245				    "Unrecognized interrupt type (%d).\n",
246				    mb[0]);
247			}
248			/* Release mailbox registers. */
249			wrt_reg_word(&reg->semaphore, 0);
250			rd_reg_word(&reg->semaphore);
251		} else {
252			qla2x00_process_response_queue(rsp);
253
254			wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
255			rd_reg_word(&reg->hccr);
256		}
257	}
258	qla2x00_handle_mbx_completion(ha, status);
259	spin_unlock_irqrestore(&ha->hardware_lock, flags);
260
261	return (IRQ_HANDLED);
262}
263
264bool
265qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
266{
267	/* Check for PCI disconnection */
268	if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
269		if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
270		    !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
271		    !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
272			qla_schedule_eeh_work(vha);
273		}
274		return true;
275	} else
276		return false;
277}
278
279bool
280qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
281{
282	return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
283}
284
285/**
286 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
287 * @irq: interrupt number
288 * @dev_id: SCSI driver HA context
289 *
290 * Called by system whenever the host adapter generates an interrupt.
291 *
292 * Returns handled flag.
293 */
294irqreturn_t
295qla2300_intr_handler(int irq, void *dev_id)
296{
297	scsi_qla_host_t	*vha;
298	struct device_reg_2xxx __iomem *reg;
299	int		status;
300	unsigned long	iter;
301	uint32_t	stat;
302	uint16_t	hccr;
303	uint16_t	mb[8];
304	struct rsp_que *rsp;
305	struct qla_hw_data *ha;
306	unsigned long	flags;
307
308	rsp = (struct rsp_que *) dev_id;
309	if (!rsp) {
310		ql_log(ql_log_info, NULL, 0x5058,
311		    "%s: NULL response queue pointer.\n", __func__);
312		return (IRQ_NONE);
313	}
314
315	ha = rsp->hw;
316	reg = &ha->iobase->isp;
317	status = 0;
318
319	spin_lock_irqsave(&ha->hardware_lock, flags);
320	vha = pci_get_drvdata(ha->pdev);
321	for (iter = 50; iter--; ) {
322		stat = rd_reg_dword(&reg->u.isp2300.host_status);
323		if (qla2x00_check_reg32_for_disconnect(vha, stat))
324			break;
325		if (stat & HSR_RISC_PAUSED) {
326			if (unlikely(pci_channel_offline(ha->pdev)))
327				break;
328
329			hccr = rd_reg_word(&reg->hccr);
330
331			if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
332				ql_log(ql_log_warn, vha, 0x5026,
333				    "Parity error -- HCCR=%x, Dumping "
334				    "firmware.\n", hccr);
335			else
336				ql_log(ql_log_warn, vha, 0x5027,
337				    "RISC paused -- HCCR=%x, Dumping "
338				    "firmware.\n", hccr);
339
340			/*
341			 * Issue a "HARD" reset in order for the RISC
342			 * interrupt bit to be cleared.  Schedule a big
343			 * hammer to get out of the RISC PAUSED state.
344			 */
345			wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
346			rd_reg_word(&reg->hccr);
347
348			ha->isp_ops->fw_dump(vha);
349			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
350			break;
351		} else if ((stat & HSR_RISC_INT) == 0)
352			break;
353
354		switch (stat & 0xff) {
355		case 0x1:
356		case 0x2:
357		case 0x10:
358		case 0x11:
359			qla2x00_mbx_completion(vha, MSW(stat));
360			status |= MBX_INTERRUPT;
361
362			/* Release mailbox registers. */
363			wrt_reg_word(&reg->semaphore, 0);
364			break;
365		case 0x12:
366			mb[0] = MSW(stat);
367			mb[1] = RD_MAILBOX_REG(ha, reg, 1);
368			mb[2] = RD_MAILBOX_REG(ha, reg, 2);
369			mb[3] = RD_MAILBOX_REG(ha, reg, 3);
370			qla2x00_async_event(vha, rsp, mb);
371			break;
372		case 0x13:
373			qla2x00_process_response_queue(rsp);
374			break;
375		case 0x15:
376			mb[0] = MBA_CMPLT_1_16BIT;
377			mb[1] = MSW(stat);
378			qla2x00_async_event(vha, rsp, mb);
379			break;
380		case 0x16:
381			mb[0] = MBA_SCSI_COMPLETION;
382			mb[1] = MSW(stat);
383			mb[2] = RD_MAILBOX_REG(ha, reg, 2);
384			qla2x00_async_event(vha, rsp, mb);
385			break;
386		default:
387			ql_dbg(ql_dbg_async, vha, 0x5028,
388			    "Unrecognized interrupt type (%d).\n", stat & 0xff);
389			break;
390		}
391		wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
392		rd_reg_word_relaxed(&reg->hccr);
393	}
394	qla2x00_handle_mbx_completion(ha, status);
395	spin_unlock_irqrestore(&ha->hardware_lock, flags);
396
397	return (IRQ_HANDLED);
398}
399
400/**
401 * qla2x00_mbx_completion() - Process mailbox command completions.
402 * @vha: SCSI driver HA context
403 * @mb0: Mailbox0 register
404 */
405static void
406qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
407{
408	uint16_t	cnt;
409	uint32_t	mboxes;
410	__le16 __iomem *wptr;
411	struct qla_hw_data *ha = vha->hw;
412	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
413
414	/* Read all mbox registers? */
415	WARN_ON_ONCE(ha->mbx_count > 32);
416	mboxes = (1ULL << ha->mbx_count) - 1;
417	if (!ha->mcp)
418		ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
419	else
420		mboxes = ha->mcp->in_mb;
421
422	/* Load return mailbox registers. */
423	ha->flags.mbox_int = 1;
424	ha->mailbox_out[0] = mb0;
425	mboxes >>= 1;
426	wptr = MAILBOX_REG(ha, reg, 1);
427
428	for (cnt = 1; cnt < ha->mbx_count; cnt++) {
429		if (IS_QLA2200(ha) && cnt == 8)
430			wptr = MAILBOX_REG(ha, reg, 8);
431		if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
432			ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
433		else if (mboxes & BIT_0)
434			ha->mailbox_out[cnt] = rd_reg_word(wptr);
435
436		wptr++;
437		mboxes >>= 1;
438	}
439}
440
441static void
442qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
443{
444	static char *event[] =
445		{ "Complete", "Request Notification", "Time Extension" };
446	int rval;
447	struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
448	struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
449	__le16 __iomem *wptr;
450	uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
451
452	/* Seed data -- mailbox1 -> mailbox7. */
453	if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
454		wptr = &reg24->mailbox1;
455	else if (IS_QLA8044(vha->hw))
456		wptr = &reg82->mailbox_out[1];
457	else
458		return;
459
460	for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
461		mb[cnt] = rd_reg_word(wptr);
462
463	ql_dbg(ql_dbg_async, vha, 0x5021,
464	    "Inter-Driver Communication %s -- "
465	    "%04x %04x %04x %04x %04x %04x %04x.\n",
466	    event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
467	    mb[4], mb[5], mb[6]);
468	switch (aen) {
469	/* Handle IDC Error completion case. */
470	case MBA_IDC_COMPLETE:
471		if (mb[1] >> 15) {
472			vha->hw->flags.idc_compl_status = 1;
473			if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
474				complete(&vha->hw->dcbx_comp);
475		}
476		break;
477
478	case MBA_IDC_NOTIFY:
479		/* Acknowledgement needed? [Notify && non-zero timeout]. */
480		timeout = (descr >> 8) & 0xf;
481		ql_dbg(ql_dbg_async, vha, 0x5022,
482		    "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
483		    vha->host_no, event[aen & 0xff], timeout);
484
485		if (!timeout)
486			return;
487		rval = qla2x00_post_idc_ack_work(vha, mb);
488		if (rval != QLA_SUCCESS)
489			ql_log(ql_log_warn, vha, 0x5023,
490			    "IDC failed to post ACK.\n");
491		break;
492	case MBA_IDC_TIME_EXT:
493		vha->hw->idc_extend_tmo = descr;
494		ql_dbg(ql_dbg_async, vha, 0x5087,
495		    "%lu Inter-Driver Communication %s -- "
496		    "Extend timeout by=%d.\n",
497		    vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
498		break;
499	}
500}
501
502#define LS_UNKNOWN	2
503const char *
504qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
505{
506	static const char *const link_speeds[] = {
507		"1", "2", "?", "4", "8", "16", "32", "10"
508	};
509#define	QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
510
511	if (IS_QLA2100(ha) || IS_QLA2200(ha))
512		return link_speeds[0];
513	else if (speed == 0x13)
514		return link_speeds[QLA_LAST_SPEED];
515	else if (speed < QLA_LAST_SPEED)
516		return link_speeds[speed];
517	else
518		return link_speeds[LS_UNKNOWN];
519}
520
521static void
522qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
523{
524	struct qla_hw_data *ha = vha->hw;
525
526	/*
527	 * 8200 AEN Interpretation:
528	 * mb[0] = AEN code
529	 * mb[1] = AEN Reason code
530	 * mb[2] = LSW of Peg-Halt Status-1 Register
531	 * mb[6] = MSW of Peg-Halt Status-1 Register
532	 * mb[3] = LSW of Peg-Halt Status-2 register
533	 * mb[7] = MSW of Peg-Halt Status-2 register
534	 * mb[4] = IDC Device-State Register value
535	 * mb[5] = IDC Driver-Presence Register value
536	 */
537	ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
538	    "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
539	    mb[0], mb[1], mb[2], mb[6]);
540	ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
541	    "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
542	    "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
543
544	if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
545				IDC_HEARTBEAT_FAILURE)) {
546		ha->flags.nic_core_hung = 1;
547		ql_log(ql_log_warn, vha, 0x5060,
548		    "83XX: F/W Error Reported: Check if reset required.\n");
549
550		if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
551			uint32_t protocol_engine_id, fw_err_code, err_level;
552
553			/*
554			 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
555			 *  - PEG-Halt Status-1 Register:
556			 *	(LSW = mb[2], MSW = mb[6])
557			 *	Bits 0-7   = protocol-engine ID
558			 *	Bits 8-28  = f/w error code
559			 *	Bits 29-31 = Error-level
560			 *	    Error-level 0x1 = Non-Fatal error
561			 *	    Error-level 0x2 = Recoverable Fatal error
562			 *	    Error-level 0x4 = UnRecoverable Fatal error
563			 *  - PEG-Halt Status-2 Register:
564			 *	(LSW = mb[3], MSW = mb[7])
565			 */
566			protocol_engine_id = (mb[2] & 0xff);
567			fw_err_code = (((mb[2] & 0xff00) >> 8) |
568			    ((mb[6] & 0x1fff) << 8));
569			err_level = ((mb[6] & 0xe000) >> 13);
570			ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
571			    "Register: protocol_engine_id=0x%x "
572			    "fw_err_code=0x%x err_level=0x%x.\n",
573			    protocol_engine_id, fw_err_code, err_level);
574			ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
575			    "Register: 0x%x%x.\n", mb[7], mb[3]);
576			if (err_level == ERR_LEVEL_NON_FATAL) {
577				ql_log(ql_log_warn, vha, 0x5063,
578				    "Not a fatal error, f/w has recovered itself.\n");
579			} else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
580				ql_log(ql_log_fatal, vha, 0x5064,
581				    "Recoverable Fatal error: Chip reset "
582				    "required.\n");
583				qla83xx_schedule_work(vha,
584				    QLA83XX_NIC_CORE_RESET);
585			} else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
586				ql_log(ql_log_fatal, vha, 0x5065,
587				    "Unrecoverable Fatal error: Set FAILED "
588				    "state, reboot required.\n");
589				qla83xx_schedule_work(vha,
590				    QLA83XX_NIC_CORE_UNRECOVERABLE);
591			}
592		}
593
594		if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
595			uint16_t peg_fw_state, nw_interface_link_up;
596			uint16_t nw_interface_signal_detect, sfp_status;
597			uint16_t htbt_counter, htbt_monitor_enable;
598			uint16_t sfp_additional_info, sfp_multirate;
599			uint16_t sfp_tx_fault, link_speed, dcbx_status;
600
601			/*
602			 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
603			 *  - PEG-to-FC Status Register:
604			 *	(LSW = mb[2], MSW = mb[6])
605			 *	Bits 0-7   = Peg-Firmware state
606			 *	Bit 8      = N/W Interface Link-up
607			 *	Bit 9      = N/W Interface signal detected
608			 *	Bits 10-11 = SFP Status
609			 *	  SFP Status 0x0 = SFP+ transceiver not expected
610			 *	  SFP Status 0x1 = SFP+ transceiver not present
611			 *	  SFP Status 0x2 = SFP+ transceiver invalid
612			 *	  SFP Status 0x3 = SFP+ transceiver present and
613			 *	  valid
614			 *	Bits 12-14 = Heartbeat Counter
615			 *	Bit 15     = Heartbeat Monitor Enable
616			 *	Bits 16-17 = SFP Additional Info
617			 *	  SFP info 0x0 = Unregocnized transceiver for
618			 *	  Ethernet
619			 *	  SFP info 0x1 = SFP+ brand validation failed
620			 *	  SFP info 0x2 = SFP+ speed validation failed
621			 *	  SFP info 0x3 = SFP+ access error
622			 *	Bit 18     = SFP Multirate
623			 *	Bit 19     = SFP Tx Fault
624			 *	Bits 20-22 = Link Speed
625			 *	Bits 23-27 = Reserved
626			 *	Bits 28-30 = DCBX Status
627			 *	  DCBX Status 0x0 = DCBX Disabled
628			 *	  DCBX Status 0x1 = DCBX Enabled
629			 *	  DCBX Status 0x2 = DCBX Exchange error
630			 *	Bit 31     = Reserved
631			 */
632			peg_fw_state = (mb[2] & 0x00ff);
633			nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
634			nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
635			sfp_status = ((mb[2] & 0x0c00) >> 10);
636			htbt_counter = ((mb[2] & 0x7000) >> 12);
637			htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
638			sfp_additional_info = (mb[6] & 0x0003);
639			sfp_multirate = ((mb[6] & 0x0004) >> 2);
640			sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
641			link_speed = ((mb[6] & 0x0070) >> 4);
642			dcbx_status = ((mb[6] & 0x7000) >> 12);
643
644			ql_log(ql_log_warn, vha, 0x5066,
645			    "Peg-to-Fc Status Register:\n"
646			    "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
647			    "nw_interface_signal_detect=0x%x"
648			    "\nsfp_statis=0x%x.\n ", peg_fw_state,
649			    nw_interface_link_up, nw_interface_signal_detect,
650			    sfp_status);
651			ql_log(ql_log_warn, vha, 0x5067,
652			    "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
653			    "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
654			    htbt_counter, htbt_monitor_enable,
655			    sfp_additional_info, sfp_multirate);
656			ql_log(ql_log_warn, vha, 0x5068,
657			    "sfp_tx_fault=0x%x, link_state=0x%x, "
658			    "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
659			    dcbx_status);
660
661			qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
662		}
663
664		if (mb[1] & IDC_HEARTBEAT_FAILURE) {
665			ql_log(ql_log_warn, vha, 0x5069,
666			    "Heartbeat Failure encountered, chip reset "
667			    "required.\n");
668
669			qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
670		}
671	}
672
673	if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
674		ql_log(ql_log_info, vha, 0x506a,
675		    "IDC Device-State changed = 0x%x.\n", mb[4]);
676		if (ha->flags.nic_core_reset_owner)
677			return;
678		qla83xx_schedule_work(vha, MBA_IDC_AEN);
679	}
680}
681
682int
683qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
684{
685	struct qla_hw_data *ha = vha->hw;
686	scsi_qla_host_t *vp;
687	uint32_t vp_did;
688	unsigned long flags;
689	int ret = 0;
690
691	if (!ha->num_vhosts)
692		return ret;
693
694	spin_lock_irqsave(&ha->vport_slock, flags);
695	list_for_each_entry(vp, &ha->vp_list, list) {
696		vp_did = vp->d_id.b24;
697		if (vp_did == rscn_entry) {
698			ret = 1;
699			break;
700		}
701	}
702	spin_unlock_irqrestore(&ha->vport_slock, flags);
703
704	return ret;
705}
706
707fc_port_t *
708qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
709{
710	fc_port_t *f, *tf;
711
712	f = tf = NULL;
713	list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
714		if (f->loop_id == loop_id)
715			return f;
716	return NULL;
717}
718
719fc_port_t *
720qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
721{
722	fc_port_t *f, *tf;
723
724	f = tf = NULL;
725	list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
726		if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
727			if (incl_deleted)
728				return f;
729			else if (f->deleted == 0)
730				return f;
731		}
732	}
733	return NULL;
734}
735
736fc_port_t *
737qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
738	u8 incl_deleted)
739{
740	fc_port_t *f, *tf;
741
742	f = tf = NULL;
743	list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
744		if (f->d_id.b24 == id->b24) {
745			if (incl_deleted)
746				return f;
747			else if (f->deleted == 0)
748				return f;
749		}
750	}
751	return NULL;
752}
753
754/* Shall be called only on supported adapters. */
755static void
756qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
757{
758	struct qla_hw_data *ha = vha->hw;
759	bool reset_isp_needed = 0;
760
761	ql_log(ql_log_warn, vha, 0x02f0,
762	       "MPI Heartbeat stop. MPI reset is%s needed. "
763	       "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
764	       mb[1] & BIT_8 ? "" : " not",
765	       mb[0], mb[1], mb[2], mb[3]);
766
767	if ((mb[1] & BIT_8) == 0)
768		return;
769
770	ql_log(ql_log_warn, vha, 0x02f1,
771	       "MPI Heartbeat stop. FW dump needed\n");
772
773	if (ql2xfulldump_on_mpifail) {
774		ha->isp_ops->fw_dump(vha);
775		reset_isp_needed = 1;
776	}
777
778	ha->isp_ops->mpi_fw_dump(vha, 1);
779
780	if (reset_isp_needed) {
781		vha->hw->flags.fw_init_done = 0;
782		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
783		qla2xxx_wake_dpc(vha);
784	}
785}
786
787static struct purex_item *
788qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
789{
790	struct purex_item *item = NULL;
791	uint8_t item_hdr_size = sizeof(*item);
792
793	if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
794		item = kzalloc(item_hdr_size +
795		    (size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
796	} else {
797		if (atomic_inc_return(&vha->default_item.in_use) == 1) {
798			item = &vha->default_item;
799			goto initialize_purex_header;
800		} else {
801			item = kzalloc(item_hdr_size, GFP_ATOMIC);
802		}
803	}
804	if (!item) {
805		ql_log(ql_log_warn, vha, 0x5092,
806		       ">> Failed allocate purex list item.\n");
807
808		return NULL;
809	}
810
811initialize_purex_header:
812	item->vha = vha;
813	item->size = size;
814	return item;
815}
816
817static void
818qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
819			 void (*process_item)(struct scsi_qla_host *vha,
820					      struct purex_item *pkt))
821{
822	struct purex_list *list = &vha->purex_list;
823	ulong flags;
824
825	pkt->process_item = process_item;
826
827	spin_lock_irqsave(&list->lock, flags);
828	list_add_tail(&pkt->list, &list->head);
829	spin_unlock_irqrestore(&list->lock, flags);
830
831	set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
832}
833
834/**
835 * qla24xx_copy_std_pkt() - Copy over purex ELS which is
836 * contained in a single IOCB.
837 * purex packet.
838 * @vha: SCSI driver HA context
839 * @pkt: ELS packet
840 */
841static struct purex_item
842*qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
843{
844	struct purex_item *item;
845
846	item = qla24xx_alloc_purex_item(vha,
847					QLA_DEFAULT_PAYLOAD_SIZE);
848	if (!item)
849		return item;
850
851	memcpy(&item->iocb, pkt, sizeof(item->iocb));
852	return item;
853}
854
855/**
856 * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
857 * span over multiple IOCBs.
858 * @vha: SCSI driver HA context
859 * @pkt: ELS packet
860 * @rsp: Response queue
861 */
862static struct purex_item *
863qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
864		      struct rsp_que **rsp)
865{
866	struct purex_entry_24xx *purex = *pkt;
867	struct rsp_que *rsp_q = *rsp;
868	sts_cont_entry_t *new_pkt;
869	uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
870	uint16_t buffer_copy_offset = 0;
871	uint16_t entry_count, entry_count_remaining;
872	struct purex_item *item;
873	void *fpin_pkt = NULL;
874
875	total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
876	    - PURX_ELS_HEADER_SIZE;
877	pending_bytes = total_bytes;
878	entry_count = entry_count_remaining = purex->entry_count;
879	no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
880		   sizeof(purex->els_frame_payload) : pending_bytes;
881	ql_log(ql_log_info, vha, 0x509a,
882	       "FPIN ELS, frame_size 0x%x, entry count %d\n",
883	       total_bytes, entry_count);
884
885	item = qla24xx_alloc_purex_item(vha, total_bytes);
886	if (!item)
887		return item;
888
889	fpin_pkt = &item->iocb;
890
891	memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
892	buffer_copy_offset += no_bytes;
893	pending_bytes -= no_bytes;
894	--entry_count_remaining;
895
896	((response_t *)purex)->signature = RESPONSE_PROCESSED;
897	wmb();
898
899	do {
900		while ((total_bytes > 0) && (entry_count_remaining > 0)) {
901			if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
902				ql_dbg(ql_dbg_async, vha, 0x5084,
903				       "Ran out of IOCBs, partial data 0x%x\n",
904				       buffer_copy_offset);
905				cpu_relax();
906				continue;
907			}
908
909			new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
910			*pkt = new_pkt;
911
912			if (new_pkt->entry_type != STATUS_CONT_TYPE) {
913				ql_log(ql_log_warn, vha, 0x507a,
914				       "Unexpected IOCB type, partial data 0x%x\n",
915				       buffer_copy_offset);
916				break;
917			}
918
919			rsp_q->ring_index++;
920			if (rsp_q->ring_index == rsp_q->length) {
921				rsp_q->ring_index = 0;
922				rsp_q->ring_ptr = rsp_q->ring;
923			} else {
924				rsp_q->ring_ptr++;
925			}
926			no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
927			    sizeof(new_pkt->data) : pending_bytes;
928			if ((buffer_copy_offset + no_bytes) <= total_bytes) {
929				memcpy(((uint8_t *)fpin_pkt +
930				    buffer_copy_offset), new_pkt->data,
931				    no_bytes);
932				buffer_copy_offset += no_bytes;
933				pending_bytes -= no_bytes;
934				--entry_count_remaining;
935			} else {
936				ql_log(ql_log_warn, vha, 0x5044,
937				       "Attempt to copy more that we got, optimizing..%x\n",
938				       buffer_copy_offset);
939				memcpy(((uint8_t *)fpin_pkt +
940				    buffer_copy_offset), new_pkt->data,
941				    total_bytes - buffer_copy_offset);
942			}
943
944			((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
945			wmb();
946		}
947
948		if (pending_bytes != 0 || entry_count_remaining != 0) {
949			ql_log(ql_log_fatal, vha, 0x508b,
950			       "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
951			       total_bytes, entry_count_remaining);
952			qla24xx_free_purex_item(item);
953			return NULL;
954		}
955	} while (entry_count_remaining > 0);
956	host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
957	return item;
958}
959
960/**
961 * qla2x00_async_event() - Process aynchronous events.
962 * @vha: SCSI driver HA context
963 * @rsp: response queue
964 * @mb: Mailbox registers (0 - 3)
965 */
966void
967qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
968{
969	uint16_t	handle_cnt;
970	uint16_t	cnt, mbx;
971	uint32_t	handles[5];
972	struct qla_hw_data *ha = vha->hw;
973	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
974	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
975	struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
976	uint32_t	rscn_entry, host_pid;
977	unsigned long	flags;
978	fc_port_t	*fcport = NULL;
979
980	if (!vha->hw->flags.fw_started) {
981		ql_log(ql_log_warn, vha, 0x50ff,
982		    "Dropping AEN - %04x %04x %04x %04x.\n",
983		    mb[0], mb[1], mb[2], mb[3]);
984		return;
985	}
986
987	/* Setup to process RIO completion. */
988	handle_cnt = 0;
989	if (IS_CNA_CAPABLE(ha))
990		goto skip_rio;
991	switch (mb[0]) {
992	case MBA_SCSI_COMPLETION:
993		handles[0] = make_handle(mb[2], mb[1]);
994		handle_cnt = 1;
995		break;
996	case MBA_CMPLT_1_16BIT:
997		handles[0] = mb[1];
998		handle_cnt = 1;
999		mb[0] = MBA_SCSI_COMPLETION;
1000		break;
1001	case MBA_CMPLT_2_16BIT:
1002		handles[0] = mb[1];
1003		handles[1] = mb[2];
1004		handle_cnt = 2;
1005		mb[0] = MBA_SCSI_COMPLETION;
1006		break;
1007	case MBA_CMPLT_3_16BIT:
1008		handles[0] = mb[1];
1009		handles[1] = mb[2];
1010		handles[2] = mb[3];
1011		handle_cnt = 3;
1012		mb[0] = MBA_SCSI_COMPLETION;
1013		break;
1014	case MBA_CMPLT_4_16BIT:
1015		handles[0] = mb[1];
1016		handles[1] = mb[2];
1017		handles[2] = mb[3];
1018		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1019		handle_cnt = 4;
1020		mb[0] = MBA_SCSI_COMPLETION;
1021		break;
1022	case MBA_CMPLT_5_16BIT:
1023		handles[0] = mb[1];
1024		handles[1] = mb[2];
1025		handles[2] = mb[3];
1026		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1027		handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
1028		handle_cnt = 5;
1029		mb[0] = MBA_SCSI_COMPLETION;
1030		break;
1031	case MBA_CMPLT_2_32BIT:
1032		handles[0] = make_handle(mb[2], mb[1]);
1033		handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
1034					 RD_MAILBOX_REG(ha, reg, 6));
1035		handle_cnt = 2;
1036		mb[0] = MBA_SCSI_COMPLETION;
1037		break;
1038	default:
1039		break;
1040	}
1041skip_rio:
1042	switch (mb[0]) {
1043	case MBA_SCSI_COMPLETION:	/* Fast Post */
1044		if (!vha->flags.online)
1045			break;
1046
1047		for (cnt = 0; cnt < handle_cnt; cnt++)
1048			qla2x00_process_completed_request(vha, rsp->req,
1049				handles[cnt]);
1050		break;
1051
1052	case MBA_RESET:			/* Reset */
1053		ql_dbg(ql_dbg_async, vha, 0x5002,
1054		    "Asynchronous RESET.\n");
1055
1056		set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1057		break;
1058
1059	case MBA_SYSTEM_ERR:		/* System Error */
1060		mbx = 0;
1061		if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
1062		    IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1063			u16 m[4];
1064
1065			m[0] = rd_reg_word(&reg24->mailbox4);
1066			m[1] = rd_reg_word(&reg24->mailbox5);
1067			m[2] = rd_reg_word(&reg24->mailbox6);
1068			mbx = m[3] = rd_reg_word(&reg24->mailbox7);
1069
1070			ql_log(ql_log_warn, vha, 0x5003,
1071			    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
1072			    mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
1073		} else
1074			ql_log(ql_log_warn, vha, 0x5003,
1075			    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
1076			    mb[1], mb[2], mb[3]);
1077
1078		if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
1079		    rd_reg_word(&reg24->mailbox7) & BIT_8)
1080			ha->isp_ops->mpi_fw_dump(vha, 1);
1081		ha->isp_ops->fw_dump(vha);
1082		ha->flags.fw_init_done = 0;
1083		QLA_FW_STOPPED(ha);
1084
1085		if (IS_FWI2_CAPABLE(ha)) {
1086			if (mb[1] == 0 && mb[2] == 0) {
1087				ql_log(ql_log_fatal, vha, 0x5004,
1088				    "Unrecoverable Hardware Error: adapter "
1089				    "marked OFFLINE!\n");
1090				vha->flags.online = 0;
1091				vha->device_flags |= DFLG_DEV_FAILED;
1092			} else {
1093				/* Check to see if MPI timeout occurred */
1094				if ((mbx & MBX_3) && (ha->port_no == 0))
1095					set_bit(MPI_RESET_NEEDED,
1096					    &vha->dpc_flags);
1097
1098				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1099			}
1100		} else if (mb[1] == 0) {
1101			ql_log(ql_log_fatal, vha, 0x5005,
1102			    "Unrecoverable Hardware Error: adapter marked "
1103			    "OFFLINE!\n");
1104			vha->flags.online = 0;
1105			vha->device_flags |= DFLG_DEV_FAILED;
1106		} else
1107			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1108		break;
1109
1110	case MBA_REQ_TRANSFER_ERR:	/* Request Transfer Error */
1111		ql_log(ql_log_warn, vha, 0x5006,
1112		    "ISP Request Transfer Error (%x).\n",  mb[1]);
1113
1114		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1115		break;
1116
1117	case MBA_RSP_TRANSFER_ERR:	/* Response Transfer Error */
1118		ql_log(ql_log_warn, vha, 0x5007,
1119		    "ISP Response Transfer Error (%x).\n", mb[1]);
1120
1121		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1122		break;
1123
1124	case MBA_WAKEUP_THRES:		/* Request Queue Wake-up */
1125		ql_dbg(ql_dbg_async, vha, 0x5008,
1126		    "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
1127		break;
1128
1129	case MBA_LOOP_INIT_ERR:
1130		ql_log(ql_log_warn, vha, 0x5090,
1131		    "LOOP INIT ERROR (%x).\n", mb[1]);
1132		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1133		break;
1134
1135	case MBA_LIP_OCCURRED:		/* Loop Initialization Procedure */
1136		ha->flags.lip_ae = 1;
1137
1138		ql_dbg(ql_dbg_async, vha, 0x5009,
1139		    "LIP occurred (%x).\n", mb[1]);
1140
1141		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1142			atomic_set(&vha->loop_state, LOOP_DOWN);
1143			atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1144			qla2x00_mark_all_devices_lost(vha);
1145		}
1146
1147		if (vha->vp_idx) {
1148			atomic_set(&vha->vp_state, VP_FAILED);
1149			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1150		}
1151
1152		set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1153		set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1154
1155		vha->flags.management_server_logged_in = 0;
1156		qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1157		break;
1158
1159	case MBA_LOOP_UP:		/* Loop Up Event */
1160		if (IS_QLA2100(ha) || IS_QLA2200(ha))
1161			ha->link_data_rate = PORT_SPEED_1GB;
1162		else
1163			ha->link_data_rate = mb[1];
1164
1165		ql_log(ql_log_info, vha, 0x500a,
1166		    "LOOP UP detected (%s Gbps).\n",
1167		    qla2x00_get_link_speed_str(ha, ha->link_data_rate));
1168
1169		if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1170			if (mb[2] & BIT_0)
1171				ql_log(ql_log_info, vha, 0x11a0,
1172				    "FEC=enabled (link up).\n");
1173		}
1174
1175		vha->flags.management_server_logged_in = 0;
1176		qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1177
1178		break;
1179
1180	case MBA_LOOP_DOWN:		/* Loop Down Event */
1181		SAVE_TOPO(ha);
1182		ha->flags.lip_ae = 0;
1183		ha->current_topology = 0;
1184
1185		mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1186			? rd_reg_word(&reg24->mailbox4) : 0;
1187		mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1188			: mbx;
1189		ql_log(ql_log_info, vha, 0x500b,
1190		    "LOOP DOWN detected (%x %x %x %x).\n",
1191		    mb[1], mb[2], mb[3], mbx);
1192
1193		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1194			atomic_set(&vha->loop_state, LOOP_DOWN);
1195			atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1196			/*
1197			 * In case of loop down, restore WWPN from
1198			 * NVRAM in case of FA-WWPN capable ISP
1199			 * Restore for Physical Port only
1200			 */
1201			if (!vha->vp_idx) {
1202				if (ha->flags.fawwpn_enabled &&
1203				    (ha->current_topology == ISP_CFG_F)) {
1204					memcpy(vha->port_name, ha->port_name, WWN_SIZE);
1205					fc_host_port_name(vha->host) =
1206					    wwn_to_u64(vha->port_name);
1207					ql_dbg(ql_dbg_init + ql_dbg_verbose,
1208					    vha, 0x00d8, "LOOP DOWN detected,"
1209					    "restore WWPN %016llx\n",
1210					    wwn_to_u64(vha->port_name));
1211				}
1212
1213				clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1214			}
1215
1216			vha->device_flags |= DFLG_NO_CABLE;
1217			qla2x00_mark_all_devices_lost(vha);
1218		}
1219
1220		if (vha->vp_idx) {
1221			atomic_set(&vha->vp_state, VP_FAILED);
1222			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1223		}
1224
1225		vha->flags.management_server_logged_in = 0;
1226		ha->link_data_rate = PORT_SPEED_UNKNOWN;
1227		qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1228		break;
1229
1230	case MBA_LIP_RESET:		/* LIP reset occurred */
1231		ql_dbg(ql_dbg_async, vha, 0x500c,
1232		    "LIP reset occurred (%x).\n", mb[1]);
1233
1234		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1235			atomic_set(&vha->loop_state, LOOP_DOWN);
1236			atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1237			qla2x00_mark_all_devices_lost(vha);
1238		}
1239
1240		if (vha->vp_idx) {
1241			atomic_set(&vha->vp_state, VP_FAILED);
1242			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1243		}
1244
1245		set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1246
1247		ha->operating_mode = LOOP;
1248		vha->flags.management_server_logged_in = 0;
1249		qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1250		break;
1251
1252	/* case MBA_DCBX_COMPLETE: */
1253	case MBA_POINT_TO_POINT:	/* Point-to-Point */
1254		ha->flags.lip_ae = 0;
1255
1256		if (IS_QLA2100(ha))
1257			break;
1258
1259		if (IS_CNA_CAPABLE(ha)) {
1260			ql_dbg(ql_dbg_async, vha, 0x500d,
1261			    "DCBX Completed -- %04x %04x %04x.\n",
1262			    mb[1], mb[2], mb[3]);
1263			if (ha->notify_dcbx_comp && !vha->vp_idx)
1264				complete(&ha->dcbx_comp);
1265
1266		} else
1267			ql_dbg(ql_dbg_async, vha, 0x500e,
1268			    "Asynchronous P2P MODE received.\n");
1269
1270		/*
1271		 * Until there's a transition from loop down to loop up, treat
1272		 * this as loop down only.
1273		 */
1274		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1275			atomic_set(&vha->loop_state, LOOP_DOWN);
1276			if (!atomic_read(&vha->loop_down_timer))
1277				atomic_set(&vha->loop_down_timer,
1278				    LOOP_DOWN_TIME);
1279			if (!N2N_TOPO(ha))
1280				qla2x00_mark_all_devices_lost(vha);
1281		}
1282
1283		if (vha->vp_idx) {
1284			atomic_set(&vha->vp_state, VP_FAILED);
1285			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1286		}
1287
1288		if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1289			set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1290
1291		set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1292		set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1293
1294		vha->flags.management_server_logged_in = 0;
1295		break;
1296
1297	case MBA_CHG_IN_CONNECTION:	/* Change in connection mode */
1298		if (IS_QLA2100(ha))
1299			break;
1300
1301		ql_dbg(ql_dbg_async, vha, 0x500f,
1302		    "Configuration change detected: value=%x.\n", mb[1]);
1303
1304		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1305			atomic_set(&vha->loop_state, LOOP_DOWN);
1306			if (!atomic_read(&vha->loop_down_timer))
1307				atomic_set(&vha->loop_down_timer,
1308				    LOOP_DOWN_TIME);
1309			qla2x00_mark_all_devices_lost(vha);
1310		}
1311
1312		if (vha->vp_idx) {
1313			atomic_set(&vha->vp_state, VP_FAILED);
1314			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1315		}
1316
1317		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1318		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1319		break;
1320
1321	case MBA_PORT_UPDATE:		/* Port database update */
1322		/*
1323		 * Handle only global and vn-port update events
1324		 *
1325		 * Relevant inputs:
1326		 * mb[1] = N_Port handle of changed port
1327		 * OR 0xffff for global event
1328		 * mb[2] = New login state
1329		 * 7 = Port logged out
1330		 * mb[3] = LSB is vp_idx, 0xff = all vps
1331		 *
1332		 * Skip processing if:
1333		 *       Event is global, vp_idx is NOT all vps,
1334		 *           vp_idx does not match
1335		 *       Event is not global, vp_idx does not match
1336		 */
1337		if (IS_QLA2XXX_MIDTYPE(ha) &&
1338		    ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1339			(mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1340			break;
1341
1342		if (mb[2] == 0x7) {
1343			ql_dbg(ql_dbg_async, vha, 0x5010,
1344			    "Port %s %04x %04x %04x.\n",
1345			    mb[1] == 0xffff ? "unavailable" : "logout",
1346			    mb[1], mb[2], mb[3]);
1347
1348			if (mb[1] == 0xffff)
1349				goto global_port_update;
1350
1351			if (mb[1] == NPH_SNS_LID(ha)) {
1352				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1353				set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1354				break;
1355			}
1356
1357			/* use handle_cnt for loop id/nport handle */
1358			if (IS_FWI2_CAPABLE(ha))
1359				handle_cnt = NPH_SNS;
1360			else
1361				handle_cnt = SIMPLE_NAME_SERVER;
1362			if (mb[1] == handle_cnt) {
1363				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1364				set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1365				break;
1366			}
1367
1368			/* Port logout */
1369			fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1370			if (!fcport)
1371				break;
1372			if (atomic_read(&fcport->state) != FCS_ONLINE)
1373				break;
1374			ql_dbg(ql_dbg_async, vha, 0x508a,
1375			    "Marking port lost loopid=%04x portid=%06x.\n",
1376			    fcport->loop_id, fcport->d_id.b24);
1377			if (qla_ini_mode_enabled(vha)) {
1378				fcport->logout_on_delete = 0;
1379				qlt_schedule_sess_for_deletion(fcport);
1380			}
1381			break;
1382
1383global_port_update:
1384			if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1385				atomic_set(&vha->loop_state, LOOP_DOWN);
1386				atomic_set(&vha->loop_down_timer,
1387				    LOOP_DOWN_TIME);
1388				vha->device_flags |= DFLG_NO_CABLE;
1389				qla2x00_mark_all_devices_lost(vha);
1390			}
1391
1392			if (vha->vp_idx) {
1393				atomic_set(&vha->vp_state, VP_FAILED);
1394				fc_vport_set_state(vha->fc_vport,
1395				    FC_VPORT_FAILED);
1396				qla2x00_mark_all_devices_lost(vha);
1397			}
1398
1399			vha->flags.management_server_logged_in = 0;
1400			ha->link_data_rate = PORT_SPEED_UNKNOWN;
1401			break;
1402		}
1403
1404		/*
1405		 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1406		 * event etc. earlier indicating loop is down) then process
1407		 * it.  Otherwise ignore it and Wait for RSCN to come in.
1408		 */
1409		atomic_set(&vha->loop_down_timer, 0);
1410		if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1411			!ha->flags.n2n_ae  &&
1412		    atomic_read(&vha->loop_state) != LOOP_DEAD) {
1413			ql_dbg(ql_dbg_async, vha, 0x5011,
1414			    "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1415			    mb[1], mb[2], mb[3]);
1416			break;
1417		}
1418
1419		ql_dbg(ql_dbg_async, vha, 0x5012,
1420		    "Port database changed %04x %04x %04x.\n",
1421		    mb[1], mb[2], mb[3]);
1422
1423		/*
1424		 * Mark all devices as missing so we will login again.
1425		 */
1426		atomic_set(&vha->loop_state, LOOP_UP);
1427		vha->scan.scan_retry = 0;
1428
1429		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1430		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1431		set_bit(VP_CONFIG_OK, &vha->vp_flags);
1432		break;
1433
1434	case MBA_RSCN_UPDATE:		/* State Change Registration */
1435		/* Check if the Vport has issued a SCR */
1436		if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1437			break;
1438		/* Only handle SCNs for our Vport index. */
1439		if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1440			break;
1441
1442		ql_dbg(ql_dbg_async, vha, 0x5013,
1443		    "RSCN database changed -- %04x %04x %04x.\n",
1444		    mb[1], mb[2], mb[3]);
1445
1446		rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1447		host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1448				| vha->d_id.b.al_pa;
1449		if (rscn_entry == host_pid) {
1450			ql_dbg(ql_dbg_async, vha, 0x5014,
1451			    "Ignoring RSCN update to local host "
1452			    "port ID (%06x).\n", host_pid);
1453			break;
1454		}
1455
1456		/* Ignore reserved bits from RSCN-payload. */
1457		rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1458
1459		/* Skip RSCNs for virtual ports on the same physical port */
1460		if (qla2x00_is_a_vp_did(vha, rscn_entry))
1461			break;
1462
1463		atomic_set(&vha->loop_down_timer, 0);
1464		vha->flags.management_server_logged_in = 0;
1465		{
1466			struct event_arg ea;
1467
1468			memset(&ea, 0, sizeof(ea));
1469			ea.id.b24 = rscn_entry;
1470			ea.id.b.rsvd_1 = rscn_entry >> 24;
1471			qla2x00_handle_rscn(vha, &ea);
1472			qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1473		}
1474		break;
1475	case MBA_CONGN_NOTI_RECV:
1476		if (!ha->flags.scm_enabled ||
1477		    mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
1478			break;
1479
1480		if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
1481			ql_dbg(ql_dbg_async, vha, 0x509b,
1482			       "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
1483		} else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
1484			ql_log(ql_log_warn, vha, 0x509b,
1485			       "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
1486		}
1487		break;
1488	/* case MBA_RIO_RESPONSE: */
1489	case MBA_ZIO_RESPONSE:
1490		ql_dbg(ql_dbg_async, vha, 0x5015,
1491		    "[R|Z]IO update completion.\n");
1492
1493		if (IS_FWI2_CAPABLE(ha))
1494			qla24xx_process_response_queue(vha, rsp);
1495		else
1496			qla2x00_process_response_queue(rsp);
1497		break;
1498
1499	case MBA_DISCARD_RND_FRAME:
1500		ql_dbg(ql_dbg_async, vha, 0x5016,
1501		    "Discard RND Frame -- %04x %04x %04x.\n",
1502		    mb[1], mb[2], mb[3]);
1503		break;
1504
1505	case MBA_TRACE_NOTIFICATION:
1506		ql_dbg(ql_dbg_async, vha, 0x5017,
1507		    "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1508		break;
1509
1510	case MBA_ISP84XX_ALERT:
1511		ql_dbg(ql_dbg_async, vha, 0x5018,
1512		    "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1513		    mb[1], mb[2], mb[3]);
1514
1515		spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1516		switch (mb[1]) {
1517		case A84_PANIC_RECOVERY:
1518			ql_log(ql_log_info, vha, 0x5019,
1519			    "Alert 84XX: panic recovery %04x %04x.\n",
1520			    mb[2], mb[3]);
1521			break;
1522		case A84_OP_LOGIN_COMPLETE:
1523			ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1524			ql_log(ql_log_info, vha, 0x501a,
1525			    "Alert 84XX: firmware version %x.\n",
1526			    ha->cs84xx->op_fw_version);
1527			break;
1528		case A84_DIAG_LOGIN_COMPLETE:
1529			ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1530			ql_log(ql_log_info, vha, 0x501b,
1531			    "Alert 84XX: diagnostic firmware version %x.\n",
1532			    ha->cs84xx->diag_fw_version);
1533			break;
1534		case A84_GOLD_LOGIN_COMPLETE:
1535			ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1536			ha->cs84xx->fw_update = 1;
1537			ql_log(ql_log_info, vha, 0x501c,
1538			    "Alert 84XX: gold firmware version %x.\n",
1539			    ha->cs84xx->gold_fw_version);
1540			break;
1541		default:
1542			ql_log(ql_log_warn, vha, 0x501d,
1543			    "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1544			    mb[1], mb[2], mb[3]);
1545		}
1546		spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1547		break;
1548	case MBA_DCBX_START:
1549		ql_dbg(ql_dbg_async, vha, 0x501e,
1550		    "DCBX Started -- %04x %04x %04x.\n",
1551		    mb[1], mb[2], mb[3]);
1552		break;
1553	case MBA_DCBX_PARAM_UPDATE:
1554		ql_dbg(ql_dbg_async, vha, 0x501f,
1555		    "DCBX Parameters Updated -- %04x %04x %04x.\n",
1556		    mb[1], mb[2], mb[3]);
1557		break;
1558	case MBA_FCF_CONF_ERR:
1559		ql_dbg(ql_dbg_async, vha, 0x5020,
1560		    "FCF Configuration Error -- %04x %04x %04x.\n",
1561		    mb[1], mb[2], mb[3]);
1562		break;
1563	case MBA_IDC_NOTIFY:
1564		if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1565			mb[4] = rd_reg_word(&reg24->mailbox4);
1566			if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1567			    (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1568			    (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1569				set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1570				/*
1571				 * Extend loop down timer since port is active.
1572				 */
1573				if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1574					atomic_set(&vha->loop_down_timer,
1575					    LOOP_DOWN_TIME);
1576				qla2xxx_wake_dpc(vha);
1577			}
1578		}
1579		fallthrough;
1580	case MBA_IDC_COMPLETE:
1581		if (ha->notify_lb_portup_comp && !vha->vp_idx)
1582			complete(&ha->lb_portup_comp);
1583		fallthrough;
1584	case MBA_IDC_TIME_EXT:
1585		if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1586		    IS_QLA8044(ha))
1587			qla81xx_idc_event(vha, mb[0], mb[1]);
1588		break;
1589
1590	case MBA_IDC_AEN:
1591		if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1592			qla27xx_handle_8200_aen(vha, mb);
1593		} else if (IS_QLA83XX(ha)) {
1594			mb[4] = rd_reg_word(&reg24->mailbox4);
1595			mb[5] = rd_reg_word(&reg24->mailbox5);
1596			mb[6] = rd_reg_word(&reg24->mailbox6);
1597			mb[7] = rd_reg_word(&reg24->mailbox7);
1598			qla83xx_handle_8200_aen(vha, mb);
1599		} else {
1600			ql_dbg(ql_dbg_async, vha, 0x5052,
1601			    "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1602			    mb[0], mb[1], mb[2], mb[3]);
1603		}
1604		break;
1605
1606	case MBA_DPORT_DIAGNOSTICS:
1607		ql_dbg(ql_dbg_async, vha, 0x5052,
1608		    "D-Port Diagnostics: %04x %04x %04x %04x\n",
1609		    mb[0], mb[1], mb[2], mb[3]);
1610		memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1611		if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1612			static char *results[] = {
1613			    "start", "done(pass)", "done(error)", "undefined" };
1614			static char *types[] = {
1615			    "none", "dynamic", "static", "other" };
1616			uint result = mb[1] >> 0 & 0x3;
1617			uint type = mb[1] >> 6 & 0x3;
1618			uint sw = mb[1] >> 15 & 0x1;
1619			ql_dbg(ql_dbg_async, vha, 0x5052,
1620			    "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1621			    results[result], types[type], sw);
1622			if (result == 2) {
1623				static char *reasons[] = {
1624				    "reserved", "unexpected reject",
1625				    "unexpected phase", "retry exceeded",
1626				    "timed out", "not supported",
1627				    "user stopped" };
1628				uint reason = mb[2] >> 0 & 0xf;
1629				uint phase = mb[2] >> 12 & 0xf;
1630				ql_dbg(ql_dbg_async, vha, 0x5052,
1631				    "D-Port Diagnostics: reason=%s phase=%u \n",
1632				    reason < 7 ? reasons[reason] : "other",
1633				    phase >> 1);
1634			}
1635		}
1636		break;
1637
1638	case MBA_TEMPERATURE_ALERT:
1639		ql_dbg(ql_dbg_async, vha, 0x505e,
1640		    "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1641		break;
1642
1643	case MBA_TRANS_INSERT:
1644		ql_dbg(ql_dbg_async, vha, 0x5091,
1645		    "Transceiver Insertion: %04x\n", mb[1]);
1646		set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1647		break;
1648
1649	case MBA_TRANS_REMOVE:
1650		ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1651		break;
1652
1653	default:
1654		ql_dbg(ql_dbg_async, vha, 0x5057,
1655		    "Unknown AEN:%04x %04x %04x %04x\n",
1656		    mb[0], mb[1], mb[2], mb[3]);
1657	}
1658
1659	qlt_async_event(mb[0], vha, mb);
1660
1661	if (!vha->vp_idx && ha->num_vhosts)
1662		qla2x00_alert_all_vps(rsp, mb);
1663}
1664
1665/**
1666 * qla2x00_process_completed_request() - Process a Fast Post response.
1667 * @vha: SCSI driver HA context
1668 * @req: request queue
1669 * @index: SRB index
1670 */
1671void
1672qla2x00_process_completed_request(struct scsi_qla_host *vha,
1673				  struct req_que *req, uint32_t index)
1674{
1675	srb_t *sp;
1676	struct qla_hw_data *ha = vha->hw;
1677
1678	/* Validate handle. */
1679	if (index >= req->num_outstanding_cmds) {
1680		ql_log(ql_log_warn, vha, 0x3014,
1681		    "Invalid SCSI command index (%x).\n", index);
1682
1683		if (IS_P3P_TYPE(ha))
1684			set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1685		else
1686			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1687		return;
1688	}
1689
1690	sp = req->outstanding_cmds[index];
1691	if (sp) {
1692		/* Free outstanding command slot. */
1693		req->outstanding_cmds[index] = NULL;
1694
1695		/* Save ISP completion status */
1696		sp->done(sp, DID_OK << 16);
1697	} else {
1698		ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1699
1700		if (IS_P3P_TYPE(ha))
1701			set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1702		else
1703			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1704	}
1705}
1706
1707srb_t *
1708qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1709    struct req_que *req, void *iocb)
1710{
1711	struct qla_hw_data *ha = vha->hw;
1712	sts_entry_t *pkt = iocb;
1713	srb_t *sp;
1714	uint16_t index;
1715
1716	index = LSW(pkt->handle);
1717	if (index >= req->num_outstanding_cmds) {
1718		ql_log(ql_log_warn, vha, 0x5031,
1719			   "%s: Invalid command index (%x) type %8ph.\n",
1720			   func, index, iocb);
1721		if (IS_P3P_TYPE(ha))
1722			set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1723		else
1724			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1725		return NULL;
1726	}
1727	sp = req->outstanding_cmds[index];
1728	if (!sp) {
1729		ql_log(ql_log_warn, vha, 0x5032,
1730			"%s: Invalid completion handle (%x) -- timed-out.\n",
1731			func, index);
1732		return NULL;
1733	}
1734	if (sp->handle != index) {
1735		ql_log(ql_log_warn, vha, 0x5033,
1736			"%s: SRB handle (%x) mismatch %x.\n", func,
1737			sp->handle, index);
1738		return NULL;
1739	}
1740
1741	req->outstanding_cmds[index] = NULL;
1742	return sp;
1743}
1744
1745static void
1746qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1747    struct mbx_entry *mbx)
1748{
1749	const char func[] = "MBX-IOCB";
1750	const char *type;
1751	fc_port_t *fcport;
1752	srb_t *sp;
1753	struct srb_iocb *lio;
1754	uint16_t *data;
1755	uint16_t status;
1756
1757	sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1758	if (!sp)
1759		return;
1760
1761	lio = &sp->u.iocb_cmd;
1762	type = sp->name;
1763	fcport = sp->fcport;
1764	data = lio->u.logio.data;
1765
1766	data[0] = MBS_COMMAND_ERROR;
1767	data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1768	    QLA_LOGIO_LOGIN_RETRIED : 0;
1769	if (mbx->entry_status) {
1770		ql_dbg(ql_dbg_async, vha, 0x5043,
1771		    "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1772		    "entry-status=%x status=%x state-flag=%x "
1773		    "status-flags=%x.\n", type, sp->handle,
1774		    fcport->d_id.b.domain, fcport->d_id.b.area,
1775		    fcport->d_id.b.al_pa, mbx->entry_status,
1776		    le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1777		    le16_to_cpu(mbx->status_flags));
1778
1779		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1780		    mbx, sizeof(*mbx));
1781
1782		goto logio_done;
1783	}
1784
1785	status = le16_to_cpu(mbx->status);
1786	if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1787	    le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1788		status = 0;
1789	if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1790		ql_dbg(ql_dbg_async, vha, 0x5045,
1791		    "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1792		    type, sp->handle, fcport->d_id.b.domain,
1793		    fcport->d_id.b.area, fcport->d_id.b.al_pa,
1794		    le16_to_cpu(mbx->mb1));
1795
1796		data[0] = MBS_COMMAND_COMPLETE;
1797		if (sp->type == SRB_LOGIN_CMD) {
1798			fcport->port_type = FCT_TARGET;
1799			if (le16_to_cpu(mbx->mb1) & BIT_0)
1800				fcport->port_type = FCT_INITIATOR;
1801			else if (le16_to_cpu(mbx->mb1) & BIT_1)
1802				fcport->flags |= FCF_FCP2_DEVICE;
1803		}
1804		goto logio_done;
1805	}
1806
1807	data[0] = le16_to_cpu(mbx->mb0);
1808	switch (data[0]) {
1809	case MBS_PORT_ID_USED:
1810		data[1] = le16_to_cpu(mbx->mb1);
1811		break;
1812	case MBS_LOOP_ID_USED:
1813		break;
1814	default:
1815		data[0] = MBS_COMMAND_ERROR;
1816		break;
1817	}
1818
1819	ql_log(ql_log_warn, vha, 0x5046,
1820	    "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1821	    "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1822	    fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1823	    status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1824	    le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1825	    le16_to_cpu(mbx->mb7));
1826
1827logio_done:
1828	sp->done(sp, 0);
1829}
1830
1831static void
1832qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1833    struct mbx_24xx_entry *pkt)
1834{
1835	const char func[] = "MBX-IOCB2";
1836	struct qla_hw_data *ha = vha->hw;
1837	srb_t *sp;
1838	struct srb_iocb *si;
1839	u16 sz, i;
1840	int res;
1841
1842	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1843	if (!sp)
1844		return;
1845
1846	if (sp->type == SRB_SCSI_CMD ||
1847	    sp->type == SRB_NVME_CMD ||
1848	    sp->type == SRB_TM_CMD) {
1849		ql_log(ql_log_warn, vha, 0x509d,
1850			"Inconsistent event entry type %d\n", sp->type);
1851		if (IS_P3P_TYPE(ha))
1852			set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1853		else
1854			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1855		return;
1856	}
1857
1858	si = &sp->u.iocb_cmd;
1859	sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1860
1861	for (i = 0; i < sz; i++)
1862		si->u.mbx.in_mb[i] = pkt->mb[i];
1863
1864	res = (si->u.mbx.in_mb[0] & MBS_MASK);
1865
1866	sp->done(sp, res);
1867}
1868
1869static void
1870qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1871    struct nack_to_isp *pkt)
1872{
1873	const char func[] = "nack";
1874	srb_t *sp;
1875	int res = 0;
1876
1877	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1878	if (!sp)
1879		return;
1880
1881	if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1882		res = QLA_FUNCTION_FAILED;
1883
1884	sp->done(sp, res);
1885}
1886
1887static void
1888qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1889    sts_entry_t *pkt, int iocb_type)
1890{
1891	const char func[] = "CT_IOCB";
1892	const char *type;
1893	srb_t *sp;
1894	struct bsg_job *bsg_job;
1895	struct fc_bsg_reply *bsg_reply;
1896	uint16_t comp_status;
1897	int res = 0;
1898
1899	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1900	if (!sp)
1901		return;
1902
1903	switch (sp->type) {
1904	case SRB_CT_CMD:
1905	    bsg_job = sp->u.bsg_job;
1906	    bsg_reply = bsg_job->reply;
1907
1908	    type = "ct pass-through";
1909
1910	    comp_status = le16_to_cpu(pkt->comp_status);
1911
1912	    /*
1913	     * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1914	     * fc payload  to the caller
1915	     */
1916	    bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1917	    bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1918
1919	    if (comp_status != CS_COMPLETE) {
1920		    if (comp_status == CS_DATA_UNDERRUN) {
1921			    res = DID_OK << 16;
1922			    bsg_reply->reply_payload_rcv_len =
1923				le16_to_cpu(pkt->rsp_info_len);
1924
1925			    ql_log(ql_log_warn, vha, 0x5048,
1926				"CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1927				type, comp_status,
1928				bsg_reply->reply_payload_rcv_len);
1929		    } else {
1930			    ql_log(ql_log_warn, vha, 0x5049,
1931				"CT pass-through-%s error comp_status=0x%x.\n",
1932				type, comp_status);
1933			    res = DID_ERROR << 16;
1934			    bsg_reply->reply_payload_rcv_len = 0;
1935		    }
1936		    ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1937			pkt, sizeof(*pkt));
1938	    } else {
1939		    res = DID_OK << 16;
1940		    bsg_reply->reply_payload_rcv_len =
1941			bsg_job->reply_payload.payload_len;
1942		    bsg_job->reply_len = 0;
1943	    }
1944	    break;
1945	case SRB_CT_PTHRU_CMD:
1946	    /*
1947	     * borrowing sts_entry_24xx.comp_status.
1948	     * same location as ct_entry_24xx.comp_status
1949	     */
1950	     res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1951		 (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1952		 sp->name);
1953	     break;
1954	}
1955
1956	sp->done(sp, res);
1957}
1958
1959static void
1960qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1961    struct sts_entry_24xx *pkt, int iocb_type)
1962{
1963	struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
1964	const char func[] = "ELS_CT_IOCB";
1965	const char *type;
1966	srb_t *sp;
1967	struct bsg_job *bsg_job;
1968	struct fc_bsg_reply *bsg_reply;
1969	uint16_t comp_status;
1970	uint32_t fw_status[3];
1971	int res;
1972	struct srb_iocb *els;
1973
1974	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1975	if (!sp)
1976		return;
1977
1978	type = NULL;
1979	switch (sp->type) {
1980	case SRB_ELS_CMD_RPT:
1981	case SRB_ELS_CMD_HST:
1982		type = "els";
1983		break;
1984	case SRB_CT_CMD:
1985		type = "ct pass-through";
1986		break;
1987	case SRB_ELS_DCMD:
1988		type = "Driver ELS logo";
1989		if (iocb_type != ELS_IOCB_TYPE) {
1990			ql_dbg(ql_dbg_user, vha, 0x5047,
1991			    "Completing %s: (%p) type=%d.\n",
1992			    type, sp, sp->type);
1993			sp->done(sp, 0);
1994			return;
1995		}
1996		break;
1997	case SRB_CT_PTHRU_CMD:
1998		/* borrowing sts_entry_24xx.comp_status.
1999		   same location as ct_entry_24xx.comp_status
2000		 */
2001		res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
2002			(struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2003			sp->name);
2004		sp->done(sp, res);
2005		return;
2006	default:
2007		ql_dbg(ql_dbg_user, vha, 0x503e,
2008		    "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
2009		return;
2010	}
2011
2012	comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
2013	fw_status[1] = le32_to_cpu(ese->error_subcode_1);
2014	fw_status[2] = le32_to_cpu(ese->error_subcode_2);
2015
2016	if (iocb_type == ELS_IOCB_TYPE) {
2017		els = &sp->u.iocb_cmd;
2018		els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
2019		els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
2020		els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
2021		els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
2022		if (comp_status == CS_COMPLETE) {
2023			res =  DID_OK << 16;
2024		} else {
2025			if (comp_status == CS_DATA_UNDERRUN) {
2026				res =  DID_OK << 16;
2027				els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
2028					ese->total_byte_count));
2029			} else {
2030				els->u.els_plogi.len = 0;
2031				res = DID_ERROR << 16;
2032			}
2033		}
2034		ql_dbg(ql_dbg_disc, vha, 0x503f,
2035		    "ELS IOCB Done -%s hdl=%x comp_status=0x%x error subcode 1=0x%x error subcode 2=0x%x total_byte=0x%x\n",
2036		    type, sp->handle, comp_status, fw_status[1], fw_status[2],
2037		    le32_to_cpu(ese->total_byte_count));
2038		goto els_ct_done;
2039	}
2040
2041	/* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2042	 * fc payload  to the caller
2043	 */
2044	bsg_job = sp->u.bsg_job;
2045	bsg_reply = bsg_job->reply;
2046	bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2047	bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
2048
2049	if (comp_status != CS_COMPLETE) {
2050		if (comp_status == CS_DATA_UNDERRUN) {
2051			res = DID_OK << 16;
2052			bsg_reply->reply_payload_rcv_len =
2053				le32_to_cpu(ese->total_byte_count);
2054
2055			ql_dbg(ql_dbg_user, vha, 0x503f,
2056			    "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2057			    "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
2058			    type, sp->handle, comp_status, fw_status[1], fw_status[2],
2059			    le32_to_cpu(ese->total_byte_count));
2060		} else {
2061			ql_dbg(ql_dbg_user, vha, 0x5040,
2062			    "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2063			    "error subcode 1=0x%x error subcode 2=0x%x.\n",
2064			    type, sp->handle, comp_status,
2065			    le32_to_cpu(ese->error_subcode_1),
2066			    le32_to_cpu(ese->error_subcode_2));
2067			res = DID_ERROR << 16;
2068			bsg_reply->reply_payload_rcv_len = 0;
2069		}
2070		memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
2071		       fw_status, sizeof(fw_status));
2072		ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
2073		    pkt, sizeof(*pkt));
2074	}
2075	else {
2076		res =  DID_OK << 16;
2077		bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
2078		bsg_job->reply_len = 0;
2079	}
2080els_ct_done:
2081
2082	sp->done(sp, res);
2083}
2084
2085static void
2086qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
2087    struct logio_entry_24xx *logio)
2088{
2089	const char func[] = "LOGIO-IOCB";
2090	const char *type;
2091	fc_port_t *fcport;
2092	srb_t *sp;
2093	struct srb_iocb *lio;
2094	uint16_t *data;
2095	uint32_t iop[2];
2096
2097	sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
2098	if (!sp)
2099		return;
2100
2101	lio = &sp->u.iocb_cmd;
2102	type = sp->name;
2103	fcport = sp->fcport;
2104	data = lio->u.logio.data;
2105
2106	data[0] = MBS_COMMAND_ERROR;
2107	data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2108		QLA_LOGIO_LOGIN_RETRIED : 0;
2109	if (logio->entry_status) {
2110		ql_log(ql_log_warn, fcport->vha, 0x5034,
2111		    "Async-%s error entry - %8phC hdl=%x"
2112		    "portid=%02x%02x%02x entry-status=%x.\n",
2113		    type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
2114		    fcport->d_id.b.area, fcport->d_id.b.al_pa,
2115		    logio->entry_status);
2116		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
2117		    logio, sizeof(*logio));
2118
2119		goto logio_done;
2120	}
2121
2122	if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
2123		ql_dbg(ql_dbg_async, sp->vha, 0x5036,
2124		    "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
2125		    type, sp->handle, fcport->d_id.b24, fcport->port_name,
2126		    le32_to_cpu(logio->io_parameter[0]));
2127
2128		vha->hw->exch_starvation = 0;
2129		data[0] = MBS_COMMAND_COMPLETE;
2130
2131		if (sp->type == SRB_PRLI_CMD) {
2132			lio->u.logio.iop[0] =
2133			    le32_to_cpu(logio->io_parameter[0]);
2134			lio->u.logio.iop[1] =
2135			    le32_to_cpu(logio->io_parameter[1]);
2136			goto logio_done;
2137		}
2138
2139		if (sp->type != SRB_LOGIN_CMD)
2140			goto logio_done;
2141
2142		iop[0] = le32_to_cpu(logio->io_parameter[0]);
2143		if (iop[0] & BIT_4) {
2144			fcport->port_type = FCT_TARGET;
2145			if (iop[0] & BIT_8)
2146				fcport->flags |= FCF_FCP2_DEVICE;
2147		} else if (iop[0] & BIT_5)
2148			fcport->port_type = FCT_INITIATOR;
2149
2150		if (iop[0] & BIT_7)
2151			fcport->flags |= FCF_CONF_COMP_SUPPORTED;
2152
2153		if (logio->io_parameter[7] || logio->io_parameter[8])
2154			fcport->supported_classes |= FC_COS_CLASS2;
2155		if (logio->io_parameter[9] || logio->io_parameter[10])
2156			fcport->supported_classes |= FC_COS_CLASS3;
2157
2158		goto logio_done;
2159	}
2160
2161	iop[0] = le32_to_cpu(logio->io_parameter[0]);
2162	iop[1] = le32_to_cpu(logio->io_parameter[1]);
2163	lio->u.logio.iop[0] = iop[0];
2164	lio->u.logio.iop[1] = iop[1];
2165	switch (iop[0]) {
2166	case LSC_SCODE_PORTID_USED:
2167		data[0] = MBS_PORT_ID_USED;
2168		data[1] = LSW(iop[1]);
2169		break;
2170	case LSC_SCODE_NPORT_USED:
2171		data[0] = MBS_LOOP_ID_USED;
2172		break;
2173	case LSC_SCODE_CMD_FAILED:
2174		if (iop[1] == 0x0606) {
2175			/*
2176			 * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
2177			 * Target side acked.
2178			 */
2179			data[0] = MBS_COMMAND_COMPLETE;
2180			goto logio_done;
2181		}
2182		data[0] = MBS_COMMAND_ERROR;
2183		break;
2184	case LSC_SCODE_NOXCB:
2185		vha->hw->exch_starvation++;
2186		if (vha->hw->exch_starvation > 5) {
2187			ql_log(ql_log_warn, vha, 0xd046,
2188			    "Exchange starvation. Resetting RISC\n");
2189
2190			vha->hw->exch_starvation = 0;
2191
2192			if (IS_P3P_TYPE(vha->hw))
2193				set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2194			else
2195				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2196			qla2xxx_wake_dpc(vha);
2197		}
2198		fallthrough;
2199	default:
2200		data[0] = MBS_COMMAND_ERROR;
2201		break;
2202	}
2203
2204	ql_dbg(ql_dbg_async, sp->vha, 0x5037,
2205	    "Async-%s failed: handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2206	    type, sp->handle, fcport->d_id.b24, fcport->port_name,
2207	    le16_to_cpu(logio->comp_status),
2208	    le32_to_cpu(logio->io_parameter[0]),
2209	    le32_to_cpu(logio->io_parameter[1]));
2210
2211logio_done:
2212	sp->done(sp, 0);
2213}
2214
2215static void
2216qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2217{
2218	const char func[] = "TMF-IOCB";
2219	const char *type;
2220	fc_port_t *fcport;
2221	srb_t *sp;
2222	struct srb_iocb *iocb;
2223	struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2224
2225	sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2226	if (!sp)
2227		return;
2228
2229	iocb = &sp->u.iocb_cmd;
2230	type = sp->name;
2231	fcport = sp->fcport;
2232	iocb->u.tmf.data = QLA_SUCCESS;
2233
2234	if (sts->entry_status) {
2235		ql_log(ql_log_warn, fcport->vha, 0x5038,
2236		    "Async-%s error - hdl=%x entry-status(%x).\n",
2237		    type, sp->handle, sts->entry_status);
2238		iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2239	} else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2240		ql_log(ql_log_warn, fcport->vha, 0x5039,
2241		    "Async-%s error - hdl=%x completion status(%x).\n",
2242		    type, sp->handle, sts->comp_status);
2243		iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2244	} else if ((le16_to_cpu(sts->scsi_status) &
2245	    SS_RESPONSE_INFO_LEN_VALID)) {
2246		host_to_fcp_swap(sts->data, sizeof(sts->data));
2247		if (le32_to_cpu(sts->rsp_data_len) < 4) {
2248			ql_log(ql_log_warn, fcport->vha, 0x503b,
2249			    "Async-%s error - hdl=%x not enough response(%d).\n",
2250			    type, sp->handle, sts->rsp_data_len);
2251		} else if (sts->data[3]) {
2252			ql_log(ql_log_warn, fcport->vha, 0x503c,
2253			    "Async-%s error - hdl=%x response(%x).\n",
2254			    type, sp->handle, sts->data[3]);
2255			iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2256		}
2257	}
2258
2259	if (iocb->u.tmf.data != QLA_SUCCESS)
2260		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2261		    sts, sizeof(*sts));
2262
2263	sp->done(sp, 0);
2264}
2265
2266static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2267    void *tsk, srb_t *sp)
2268{
2269	fc_port_t *fcport;
2270	struct srb_iocb *iocb;
2271	struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2272	uint16_t        state_flags;
2273	struct nvmefc_fcp_req *fd;
2274	uint16_t        ret = QLA_SUCCESS;
2275	__le16		comp_status = sts->comp_status;
2276	int		logit = 0;
2277
2278	iocb = &sp->u.iocb_cmd;
2279	fcport = sp->fcport;
2280	iocb->u.nvme.comp_status = comp_status;
2281	state_flags  = le16_to_cpu(sts->state_flags);
2282	fd = iocb->u.nvme.desc;
2283
2284	if (unlikely(iocb->u.nvme.aen_op))
2285		atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2286
2287	if (unlikely(comp_status != CS_COMPLETE))
2288		logit = 1;
2289
2290	fd->transferred_length = fd->payload_length -
2291	    le32_to_cpu(sts->residual_len);
2292
2293	/*
2294	 * State flags: Bit 6 and 0.
2295	 * If 0 is set, we don't care about 6.
2296	 * both cases resp was dma'd to host buffer
2297	 * if both are 0, that is good path case.
2298	 * if six is set and 0 is clear, we need to
2299	 * copy resp data from status iocb to resp buffer.
2300	 */
2301	if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2302		iocb->u.nvme.rsp_pyld_len = 0;
2303	} else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2304			(SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2305		/* Response already DMA'd to fd->rspaddr. */
2306		iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2307	} else if ((state_flags & SF_FCP_RSP_DMA)) {
2308		/*
2309		 * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2310		 * as an error.
2311		 */
2312		iocb->u.nvme.rsp_pyld_len = 0;
2313		fd->transferred_length = 0;
2314		ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2315			"Unexpected values in NVMe_RSP IU.\n");
2316		logit = 1;
2317	} else if (state_flags & SF_NVME_ERSP) {
2318		uint32_t *inbuf, *outbuf;
2319		uint16_t iter;
2320
2321		inbuf = (uint32_t *)&sts->nvme_ersp_data;
2322		outbuf = (uint32_t *)fd->rspaddr;
2323		iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2324		if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2325		    sizeof(struct nvme_fc_ersp_iu))) {
2326			if (ql_mask_match(ql_dbg_io)) {
2327				WARN_ONCE(1, "Unexpected response payload length %u.\n",
2328				    iocb->u.nvme.rsp_pyld_len);
2329				ql_log(ql_log_warn, fcport->vha, 0x5100,
2330				    "Unexpected response payload length %u.\n",
2331				    iocb->u.nvme.rsp_pyld_len);
2332			}
2333			iocb->u.nvme.rsp_pyld_len =
2334				cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2335		}
2336		iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2337		for (; iter; iter--)
2338			*outbuf++ = swab32(*inbuf++);
2339	}
2340
2341	if (state_flags & SF_NVME_ERSP) {
2342		struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2343		u32 tgt_xfer_len;
2344
2345		tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2346		if (fd->transferred_length != tgt_xfer_len) {
2347			ql_dbg(ql_dbg_io, fcport->vha, 0x3079,
2348				"Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2349				tgt_xfer_len, fd->transferred_length);
2350			logit = 1;
2351		} else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2352			/*
2353			 * Do not log if this is just an underflow and there
2354			 * is no data loss.
2355			 */
2356			logit = 0;
2357		}
2358	}
2359
2360	if (unlikely(logit))
2361		ql_log(ql_log_warn, fcport->vha, 0x5060,
2362		   "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2363		   sp->name, sp->handle, comp_status,
2364		   fd->transferred_length, le32_to_cpu(sts->residual_len),
2365		   sts->ox_id);
2366
2367	/*
2368	 * If transport error then Failure (HBA rejects request)
2369	 * otherwise transport will handle.
2370	 */
2371	switch (le16_to_cpu(comp_status)) {
2372	case CS_COMPLETE:
2373		break;
2374
2375	case CS_RESET:
2376	case CS_PORT_UNAVAILABLE:
2377	case CS_PORT_LOGGED_OUT:
2378		fcport->nvme_flag |= NVME_FLAG_RESETTING;
2379		fallthrough;
2380	case CS_ABORTED:
2381	case CS_PORT_BUSY:
2382		fd->transferred_length = 0;
2383		iocb->u.nvme.rsp_pyld_len = 0;
2384		ret = QLA_ABORTED;
2385		break;
2386	case CS_DATA_UNDERRUN:
2387		break;
2388	default:
2389		ret = QLA_FUNCTION_FAILED;
2390		break;
2391	}
2392	sp->done(sp, ret);
2393}
2394
2395static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2396    struct vp_ctrl_entry_24xx *vce)
2397{
2398	const char func[] = "CTRLVP-IOCB";
2399	srb_t *sp;
2400	int rval = QLA_SUCCESS;
2401
2402	sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2403	if (!sp)
2404		return;
2405
2406	if (vce->entry_status != 0) {
2407		ql_dbg(ql_dbg_vport, vha, 0x10c4,
2408		    "%s: Failed to complete IOCB -- error status (%x)\n",
2409		    sp->name, vce->entry_status);
2410		rval = QLA_FUNCTION_FAILED;
2411	} else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2412		ql_dbg(ql_dbg_vport, vha, 0x10c5,
2413		    "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2414		    sp->name, le16_to_cpu(vce->comp_status),
2415		    le16_to_cpu(vce->vp_idx_failed));
2416		rval = QLA_FUNCTION_FAILED;
2417	} else {
2418		ql_dbg(ql_dbg_vport, vha, 0x10c6,
2419		    "Done %s.\n", __func__);
2420	}
2421
2422	sp->rc = rval;
2423	sp->done(sp, rval);
2424}
2425
2426/* Process a single response queue entry. */
2427static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2428					   struct rsp_que *rsp,
2429					   sts_entry_t *pkt)
2430{
2431	sts21_entry_t *sts21_entry;
2432	sts22_entry_t *sts22_entry;
2433	uint16_t handle_cnt;
2434	uint16_t cnt;
2435
2436	switch (pkt->entry_type) {
2437	case STATUS_TYPE:
2438		qla2x00_status_entry(vha, rsp, pkt);
2439		break;
2440	case STATUS_TYPE_21:
2441		sts21_entry = (sts21_entry_t *)pkt;
2442		handle_cnt = sts21_entry->handle_count;
2443		for (cnt = 0; cnt < handle_cnt; cnt++)
2444			qla2x00_process_completed_request(vha, rsp->req,
2445						sts21_entry->handle[cnt]);
2446		break;
2447	case STATUS_TYPE_22:
2448		sts22_entry = (sts22_entry_t *)pkt;
2449		handle_cnt = sts22_entry->handle_count;
2450		for (cnt = 0; cnt < handle_cnt; cnt++)
2451			qla2x00_process_completed_request(vha, rsp->req,
2452						sts22_entry->handle[cnt]);
2453		break;
2454	case STATUS_CONT_TYPE:
2455		qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2456		break;
2457	case MBX_IOCB_TYPE:
2458		qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2459		break;
2460	case CT_IOCB_TYPE:
2461		qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2462		break;
2463	default:
2464		/* Type Not Supported. */
2465		ql_log(ql_log_warn, vha, 0x504a,
2466		       "Received unknown response pkt type %x entry status=%x.\n",
2467		       pkt->entry_type, pkt->entry_status);
2468		break;
2469	}
2470}
2471
2472/**
2473 * qla2x00_process_response_queue() - Process response queue entries.
2474 * @rsp: response queue
2475 */
2476void
2477qla2x00_process_response_queue(struct rsp_que *rsp)
2478{
2479	struct scsi_qla_host *vha;
2480	struct qla_hw_data *ha = rsp->hw;
2481	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2482	sts_entry_t	*pkt;
2483
2484	vha = pci_get_drvdata(ha->pdev);
2485
2486	if (!vha->flags.online)
2487		return;
2488
2489	while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2490		pkt = (sts_entry_t *)rsp->ring_ptr;
2491
2492		rsp->ring_index++;
2493		if (rsp->ring_index == rsp->length) {
2494			rsp->ring_index = 0;
2495			rsp->ring_ptr = rsp->ring;
2496		} else {
2497			rsp->ring_ptr++;
2498		}
2499
2500		if (pkt->entry_status != 0) {
2501			qla2x00_error_entry(vha, rsp, pkt);
2502			((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2503			wmb();
2504			continue;
2505		}
2506
2507		qla2x00_process_response_entry(vha, rsp, pkt);
2508		((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2509		wmb();
2510	}
2511
2512	/* Adjust ring index */
2513	wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2514}
2515
2516static inline void
2517qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2518		     uint32_t sense_len, struct rsp_que *rsp, int res)
2519{
2520	struct scsi_qla_host *vha = sp->vha;
2521	struct scsi_cmnd *cp = GET_CMD_SP(sp);
2522	uint32_t track_sense_len;
2523
2524	if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2525		sense_len = SCSI_SENSE_BUFFERSIZE;
2526
2527	SET_CMD_SENSE_LEN(sp, sense_len);
2528	SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2529	track_sense_len = sense_len;
2530
2531	if (sense_len > par_sense_len)
2532		sense_len = par_sense_len;
2533
2534	memcpy(cp->sense_buffer, sense_data, sense_len);
2535
2536	SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2537	track_sense_len -= sense_len;
2538	SET_CMD_SENSE_LEN(sp, track_sense_len);
2539
2540	if (track_sense_len != 0) {
2541		rsp->status_srb = sp;
2542		cp->result = res;
2543	}
2544
2545	if (sense_len) {
2546		ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2547		    "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2548		    sp->vha->host_no, cp->device->id, cp->device->lun,
2549		    cp);
2550		ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2551		    cp->sense_buffer, sense_len);
2552	}
2553}
2554
2555struct scsi_dif_tuple {
2556	__be16 guard;       /* Checksum */
2557	__be16 app_tag;         /* APPL identifier */
2558	__be32 ref_tag;         /* Target LBA or indirect LBA */
2559};
2560
2561/*
2562 * Checks the guard or meta-data for the type of error
2563 * detected by the HBA. In case of errors, we set the
2564 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2565 * to indicate to the kernel that the HBA detected error.
2566 */
2567static inline int
2568qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2569{
2570	struct scsi_qla_host *vha = sp->vha;
2571	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2572	uint8_t		*ap = &sts24->data[12];
2573	uint8_t		*ep = &sts24->data[20];
2574	uint32_t	e_ref_tag, a_ref_tag;
2575	uint16_t	e_app_tag, a_app_tag;
2576	uint16_t	e_guard, a_guard;
2577
2578	/*
2579	 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2580	 * would make guard field appear at offset 2
2581	 */
2582	a_guard   = get_unaligned_le16(ap + 2);
2583	a_app_tag = get_unaligned_le16(ap + 0);
2584	a_ref_tag = get_unaligned_le32(ap + 4);
2585	e_guard   = get_unaligned_le16(ep + 2);
2586	e_app_tag = get_unaligned_le16(ep + 0);
2587	e_ref_tag = get_unaligned_le32(ep + 4);
2588
2589	ql_dbg(ql_dbg_io, vha, 0x3023,
2590	    "iocb(s) %p Returned STATUS.\n", sts24);
2591
2592	ql_dbg(ql_dbg_io, vha, 0x3024,
2593	    "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2594	    " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2595	    " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2596	    cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2597	    a_app_tag, e_app_tag, a_guard, e_guard);
2598
2599	/*
2600	 * Ignore sector if:
2601	 * For type     3: ref & app tag is all 'f's
2602	 * For type 0,1,2: app tag is all 'f's
2603	 */
2604	if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
2605	    (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
2606	     a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
2607		uint32_t blocks_done, resid;
2608		sector_t lba_s = scsi_get_lba(cmd);
2609
2610		/* 2TB boundary case covered automatically with this */
2611		blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2612
2613		resid = scsi_bufflen(cmd) - (blocks_done *
2614		    cmd->device->sector_size);
2615
2616		scsi_set_resid(cmd, resid);
2617		cmd->result = DID_OK << 16;
2618
2619		/* Update protection tag */
2620		if (scsi_prot_sg_count(cmd)) {
2621			uint32_t i, j = 0, k = 0, num_ent;
2622			struct scatterlist *sg;
2623			struct t10_pi_tuple *spt;
2624
2625			/* Patch the corresponding protection tags */
2626			scsi_for_each_prot_sg(cmd, sg,
2627			    scsi_prot_sg_count(cmd), i) {
2628				num_ent = sg_dma_len(sg) / 8;
2629				if (k + num_ent < blocks_done) {
2630					k += num_ent;
2631					continue;
2632				}
2633				j = blocks_done - k - 1;
2634				k = blocks_done;
2635				break;
2636			}
2637
2638			if (k != blocks_done) {
2639				ql_log(ql_log_warn, vha, 0x302f,
2640				    "unexpected tag values tag:lba=%x:%llx)\n",
2641				    e_ref_tag, (unsigned long long)lba_s);
2642				return 1;
2643			}
2644
2645			spt = page_address(sg_page(sg)) + sg->offset;
2646			spt += j;
2647
2648			spt->app_tag = T10_PI_APP_ESCAPE;
2649			if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2650				spt->ref_tag = T10_PI_REF_ESCAPE;
2651		}
2652
2653		return 0;
2654	}
2655
2656	/* check guard */
2657	if (e_guard != a_guard) {
2658		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2659		    0x10, 0x1);
2660		set_driver_byte(cmd, DRIVER_SENSE);
2661		set_host_byte(cmd, DID_ABORT);
2662		cmd->result |= SAM_STAT_CHECK_CONDITION;
2663		return 1;
2664	}
2665
2666	/* check ref tag */
2667	if (e_ref_tag != a_ref_tag) {
2668		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2669		    0x10, 0x3);
2670		set_driver_byte(cmd, DRIVER_SENSE);
2671		set_host_byte(cmd, DID_ABORT);
2672		cmd->result |= SAM_STAT_CHECK_CONDITION;
2673		return 1;
2674	}
2675
2676	/* check appl tag */
2677	if (e_app_tag != a_app_tag) {
2678		scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2679		    0x10, 0x2);
2680		set_driver_byte(cmd, DRIVER_SENSE);
2681		set_host_byte(cmd, DID_ABORT);
2682		cmd->result |= SAM_STAT_CHECK_CONDITION;
2683		return 1;
2684	}
2685
2686	return 1;
2687}
2688
2689static void
2690qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2691				  struct req_que *req, uint32_t index)
2692{
2693	struct qla_hw_data *ha = vha->hw;
2694	srb_t *sp;
2695	uint16_t	comp_status;
2696	uint16_t	scsi_status;
2697	uint16_t thread_id;
2698	uint32_t rval = EXT_STATUS_OK;
2699	struct bsg_job *bsg_job = NULL;
2700	struct fc_bsg_request *bsg_request;
2701	struct fc_bsg_reply *bsg_reply;
2702	sts_entry_t *sts = pkt;
2703	struct sts_entry_24xx *sts24 = pkt;
2704
2705	/* Validate handle. */
2706	if (index >= req->num_outstanding_cmds) {
2707		ql_log(ql_log_warn, vha, 0x70af,
2708		    "Invalid SCSI completion handle 0x%x.\n", index);
2709		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2710		return;
2711	}
2712
2713	sp = req->outstanding_cmds[index];
2714	if (!sp) {
2715		ql_log(ql_log_warn, vha, 0x70b0,
2716		    "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2717		    req->id, index);
2718
2719		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2720		return;
2721	}
2722
2723	/* Free outstanding command slot. */
2724	req->outstanding_cmds[index] = NULL;
2725	bsg_job = sp->u.bsg_job;
2726	bsg_request = bsg_job->request;
2727	bsg_reply = bsg_job->reply;
2728
2729	if (IS_FWI2_CAPABLE(ha)) {
2730		comp_status = le16_to_cpu(sts24->comp_status);
2731		scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2732	} else {
2733		comp_status = le16_to_cpu(sts->comp_status);
2734		scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2735	}
2736
2737	thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2738	switch (comp_status) {
2739	case CS_COMPLETE:
2740		if (scsi_status == 0) {
2741			bsg_reply->reply_payload_rcv_len =
2742					bsg_job->reply_payload.payload_len;
2743			vha->qla_stats.input_bytes +=
2744				bsg_reply->reply_payload_rcv_len;
2745			vha->qla_stats.input_requests++;
2746			rval = EXT_STATUS_OK;
2747		}
2748		goto done;
2749
2750	case CS_DATA_OVERRUN:
2751		ql_dbg(ql_dbg_user, vha, 0x70b1,
2752		    "Command completed with data overrun thread_id=%d\n",
2753		    thread_id);
2754		rval = EXT_STATUS_DATA_OVERRUN;
2755		break;
2756
2757	case CS_DATA_UNDERRUN:
2758		ql_dbg(ql_dbg_user, vha, 0x70b2,
2759		    "Command completed with data underrun thread_id=%d\n",
2760		    thread_id);
2761		rval = EXT_STATUS_DATA_UNDERRUN;
2762		break;
2763	case CS_BIDIR_RD_OVERRUN:
2764		ql_dbg(ql_dbg_user, vha, 0x70b3,
2765		    "Command completed with read data overrun thread_id=%d\n",
2766		    thread_id);
2767		rval = EXT_STATUS_DATA_OVERRUN;
2768		break;
2769
2770	case CS_BIDIR_RD_WR_OVERRUN:
2771		ql_dbg(ql_dbg_user, vha, 0x70b4,
2772		    "Command completed with read and write data overrun "
2773		    "thread_id=%d\n", thread_id);
2774		rval = EXT_STATUS_DATA_OVERRUN;
2775		break;
2776
2777	case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2778		ql_dbg(ql_dbg_user, vha, 0x70b5,
2779		    "Command completed with read data over and write data "
2780		    "underrun thread_id=%d\n", thread_id);
2781		rval = EXT_STATUS_DATA_OVERRUN;
2782		break;
2783
2784	case CS_BIDIR_RD_UNDERRUN:
2785		ql_dbg(ql_dbg_user, vha, 0x70b6,
2786		    "Command completed with read data underrun "
2787		    "thread_id=%d\n", thread_id);
2788		rval = EXT_STATUS_DATA_UNDERRUN;
2789		break;
2790
2791	case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2792		ql_dbg(ql_dbg_user, vha, 0x70b7,
2793		    "Command completed with read data under and write data "
2794		    "overrun thread_id=%d\n", thread_id);
2795		rval = EXT_STATUS_DATA_UNDERRUN;
2796		break;
2797
2798	case CS_BIDIR_RD_WR_UNDERRUN:
2799		ql_dbg(ql_dbg_user, vha, 0x70b8,
2800		    "Command completed with read and write data underrun "
2801		    "thread_id=%d\n", thread_id);
2802		rval = EXT_STATUS_DATA_UNDERRUN;
2803		break;
2804
2805	case CS_BIDIR_DMA:
2806		ql_dbg(ql_dbg_user, vha, 0x70b9,
2807		    "Command completed with data DMA error thread_id=%d\n",
2808		    thread_id);
2809		rval = EXT_STATUS_DMA_ERR;
2810		break;
2811
2812	case CS_TIMEOUT:
2813		ql_dbg(ql_dbg_user, vha, 0x70ba,
2814		    "Command completed with timeout thread_id=%d\n",
2815		    thread_id);
2816		rval = EXT_STATUS_TIMEOUT;
2817		break;
2818	default:
2819		ql_dbg(ql_dbg_user, vha, 0x70bb,
2820		    "Command completed with completion status=0x%x "
2821		    "thread_id=%d\n", comp_status, thread_id);
2822		rval = EXT_STATUS_ERR;
2823		break;
2824	}
2825	bsg_reply->reply_payload_rcv_len = 0;
2826
2827done:
2828	/* Return the vendor specific reply to API */
2829	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2830	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2831	/* Always return DID_OK, bsg will send the vendor specific response
2832	 * in this case only */
2833	sp->done(sp, DID_OK << 16);
2834
2835}
2836
2837/**
2838 * qla2x00_status_entry() - Process a Status IOCB entry.
2839 * @vha: SCSI driver HA context
2840 * @rsp: response queue
2841 * @pkt: Entry pointer
2842 */
2843static void
2844qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2845{
2846	srb_t		*sp;
2847	fc_port_t	*fcport;
2848	struct scsi_cmnd *cp;
2849	sts_entry_t *sts = pkt;
2850	struct sts_entry_24xx *sts24 = pkt;
2851	uint16_t	comp_status;
2852	uint16_t	scsi_status;
2853	uint16_t	ox_id;
2854	uint8_t		lscsi_status;
2855	int32_t		resid;
2856	uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2857	    fw_resid_len;
2858	uint8_t		*rsp_info, *sense_data;
2859	struct qla_hw_data *ha = vha->hw;
2860	uint32_t handle;
2861	uint16_t que;
2862	struct req_que *req;
2863	int logit = 1;
2864	int res = 0;
2865	uint16_t state_flags = 0;
2866	uint16_t sts_qual = 0;
2867
2868	if (IS_FWI2_CAPABLE(ha)) {
2869		comp_status = le16_to_cpu(sts24->comp_status);
2870		scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2871		state_flags = le16_to_cpu(sts24->state_flags);
2872	} else {
2873		comp_status = le16_to_cpu(sts->comp_status);
2874		scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2875	}
2876	handle = (uint32_t) LSW(sts->handle);
2877	que = MSW(sts->handle);
2878	req = ha->req_q_map[que];
2879
2880	/* Check for invalid queue pointer */
2881	if (req == NULL ||
2882	    que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2883		ql_dbg(ql_dbg_io, vha, 0x3059,
2884		    "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2885		    "que=%u.\n", sts->handle, req, que);
2886		return;
2887	}
2888
2889	/* Validate handle. */
2890	if (handle < req->num_outstanding_cmds) {
2891		sp = req->outstanding_cmds[handle];
2892		if (!sp) {
2893			ql_dbg(ql_dbg_io, vha, 0x3075,
2894			    "%s(%ld): Already returned command for status handle (0x%x).\n",
2895			    __func__, vha->host_no, sts->handle);
2896			return;
2897		}
2898	} else {
2899		ql_dbg(ql_dbg_io, vha, 0x3017,
2900		    "Invalid status handle, out of range (0x%x).\n",
2901		    sts->handle);
2902
2903		if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2904			if (IS_P3P_TYPE(ha))
2905				set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2906			else
2907				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2908			qla2xxx_wake_dpc(vha);
2909		}
2910		return;
2911	}
2912	qla_put_iocbs(sp->qpair, &sp->iores);
2913
2914	if (sp->cmd_type != TYPE_SRB) {
2915		req->outstanding_cmds[handle] = NULL;
2916		ql_dbg(ql_dbg_io, vha, 0x3015,
2917		    "Unknown sp->cmd_type %x %p).\n",
2918		    sp->cmd_type, sp);
2919		return;
2920	}
2921
2922	/* NVME completion. */
2923	if (sp->type == SRB_NVME_CMD) {
2924		req->outstanding_cmds[handle] = NULL;
2925		qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
2926		return;
2927	}
2928
2929	if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2930		qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2931		return;
2932	}
2933
2934	/* Task Management completion. */
2935	if (sp->type == SRB_TM_CMD) {
2936		qla24xx_tm_iocb_entry(vha, req, pkt);
2937		return;
2938	}
2939
2940	/* Fast path completion. */
2941	if (comp_status == CS_COMPLETE && scsi_status == 0) {
2942		qla2x00_process_completed_request(vha, req, handle);
2943
2944		return;
2945	}
2946
2947	req->outstanding_cmds[handle] = NULL;
2948	cp = GET_CMD_SP(sp);
2949	if (cp == NULL) {
2950		ql_dbg(ql_dbg_io, vha, 0x3018,
2951		    "Command already returned (0x%x/%p).\n",
2952		    sts->handle, sp);
2953
2954		return;
2955	}
2956
2957	lscsi_status = scsi_status & STATUS_MASK;
2958
2959	fcport = sp->fcport;
2960
2961	ox_id = 0;
2962	sense_len = par_sense_len = rsp_info_len = resid_len =
2963	    fw_resid_len = 0;
2964	if (IS_FWI2_CAPABLE(ha)) {
2965		if (scsi_status & SS_SENSE_LEN_VALID)
2966			sense_len = le32_to_cpu(sts24->sense_len);
2967		if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2968			rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2969		if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2970			resid_len = le32_to_cpu(sts24->rsp_residual_count);
2971		if (comp_status == CS_DATA_UNDERRUN)
2972			fw_resid_len = le32_to_cpu(sts24->residual_len);
2973		rsp_info = sts24->data;
2974		sense_data = sts24->data;
2975		host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2976		ox_id = le16_to_cpu(sts24->ox_id);
2977		par_sense_len = sizeof(sts24->data);
2978		sts_qual = le16_to_cpu(sts24->status_qualifier);
2979	} else {
2980		if (scsi_status & SS_SENSE_LEN_VALID)
2981			sense_len = le16_to_cpu(sts->req_sense_length);
2982		if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2983			rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2984		resid_len = le32_to_cpu(sts->residual_length);
2985		rsp_info = sts->rsp_info;
2986		sense_data = sts->req_sense_data;
2987		par_sense_len = sizeof(sts->req_sense_data);
2988	}
2989
2990	/* Check for any FCP transport errors. */
2991	if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2992		/* Sense data lies beyond any FCP RESPONSE data. */
2993		if (IS_FWI2_CAPABLE(ha)) {
2994			sense_data += rsp_info_len;
2995			par_sense_len -= rsp_info_len;
2996		}
2997		if (rsp_info_len > 3 && rsp_info[3]) {
2998			ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2999			    "FCP I/O protocol failure (0x%x/0x%x).\n",
3000			    rsp_info_len, rsp_info[3]);
3001
3002			res = DID_BUS_BUSY << 16;
3003			goto out;
3004		}
3005	}
3006
3007	/* Check for overrun. */
3008	if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
3009	    scsi_status & SS_RESIDUAL_OVER)
3010		comp_status = CS_DATA_OVERRUN;
3011
3012	/*
3013	 * Check retry_delay_timer value if we receive a busy or
3014	 * queue full.
3015	 */
3016	if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
3017		     lscsi_status == SAM_STAT_BUSY))
3018		qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
3019
3020	/*
3021	 * Based on Host and scsi status generate status code for Linux
3022	 */
3023	switch (comp_status) {
3024	case CS_COMPLETE:
3025	case CS_QUEUE_FULL:
3026		if (scsi_status == 0) {
3027			res = DID_OK << 16;
3028			break;
3029		}
3030		if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
3031			resid = resid_len;
3032			scsi_set_resid(cp, resid);
3033
3034			if (!lscsi_status &&
3035			    ((unsigned)(scsi_bufflen(cp) - resid) <
3036			     cp->underflow)) {
3037				ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
3038				    "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3039				    resid, scsi_bufflen(cp));
3040
3041				res = DID_ERROR << 16;
3042				break;
3043			}
3044		}
3045		res = DID_OK << 16 | lscsi_status;
3046
3047		if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3048			ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
3049			    "QUEUE FULL detected.\n");
3050			break;
3051		}
3052		logit = 0;
3053		if (lscsi_status != SS_CHECK_CONDITION)
3054			break;
3055
3056		memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3057		if (!(scsi_status & SS_SENSE_LEN_VALID))
3058			break;
3059
3060		qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
3061		    rsp, res);
3062		break;
3063
3064	case CS_DATA_UNDERRUN:
3065		/* Use F/W calculated residual length. */
3066		resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
3067		scsi_set_resid(cp, resid);
3068		if (scsi_status & SS_RESIDUAL_UNDER) {
3069			if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
3070				ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
3071				    "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3072				    resid, scsi_bufflen(cp));
3073
3074				res = DID_ERROR << 16 | lscsi_status;
3075				goto check_scsi_status;
3076			}
3077
3078			if (!lscsi_status &&
3079			    ((unsigned)(scsi_bufflen(cp) - resid) <
3080			    cp->underflow)) {
3081				ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
3082				    "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3083				    resid, scsi_bufflen(cp));
3084
3085				res = DID_ERROR << 16;
3086				break;
3087			}
3088		} else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
3089			    lscsi_status != SAM_STAT_BUSY) {
3090			/*
3091			 * scsi status of task set and busy are considered to be
3092			 * task not completed.
3093			 */
3094
3095			ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
3096			    "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3097			    resid, scsi_bufflen(cp));
3098
3099			res = DID_ERROR << 16 | lscsi_status;
3100			goto check_scsi_status;
3101		} else {
3102			ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
3103			    "scsi_status: 0x%x, lscsi_status: 0x%x\n",
3104			    scsi_status, lscsi_status);
3105		}
3106
3107		res = DID_OK << 16 | lscsi_status;
3108		logit = 0;
3109
3110check_scsi_status:
3111		/*
3112		 * Check to see if SCSI Status is non zero. If so report SCSI
3113		 * Status.
3114		 */
3115		if (lscsi_status != 0) {
3116			if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3117				ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
3118				    "QUEUE FULL detected.\n");
3119				logit = 1;
3120				break;
3121			}
3122			if (lscsi_status != SS_CHECK_CONDITION)
3123				break;
3124
3125			memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3126			if (!(scsi_status & SS_SENSE_LEN_VALID))
3127				break;
3128
3129			qla2x00_handle_sense(sp, sense_data, par_sense_len,
3130			    sense_len, rsp, res);
3131		}
3132		break;
3133
3134	case CS_PORT_LOGGED_OUT:
3135	case CS_PORT_CONFIG_CHG:
3136	case CS_PORT_BUSY:
3137	case CS_INCOMPLETE:
3138	case CS_PORT_UNAVAILABLE:
3139	case CS_RESET:
3140
3141		/*
3142		 * We are going to have the fc class block the rport
3143		 * while we try to recover so instruct the mid layer
3144		 * to requeue until the class decides how to handle this.
3145		 */
3146		res = DID_TRANSPORT_DISRUPTED << 16;
3147
3148		if (comp_status == CS_TIMEOUT) {
3149			if (IS_FWI2_CAPABLE(ha))
3150				break;
3151			else if ((le16_to_cpu(sts->status_flags) &
3152			    SF_LOGOUT_SENT) == 0)
3153				break;
3154		}
3155
3156		if (atomic_read(&fcport->state) == FCS_ONLINE) {
3157			ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
3158				"Port to be marked lost on fcport=%02x%02x%02x, current "
3159				"port state= %s comp_status %x.\n", fcport->d_id.b.domain,
3160				fcport->d_id.b.area, fcport->d_id.b.al_pa,
3161				port_state_str[FCS_ONLINE],
3162				comp_status);
3163
3164			qlt_schedule_sess_for_deletion(fcport);
3165		}
3166
3167		break;
3168
3169	case CS_ABORTED:
3170		res = DID_RESET << 16;
3171		break;
3172
3173	case CS_DIF_ERROR:
3174		logit = qla2x00_handle_dif_error(sp, sts24);
3175		res = cp->result;
3176		break;
3177
3178	case CS_TRANSPORT:
3179		res = DID_ERROR << 16;
3180
3181		if (!IS_PI_SPLIT_DET_CAPABLE(ha))
3182			break;
3183
3184		if (state_flags & BIT_4)
3185			scmd_printk(KERN_WARNING, cp,
3186			    "Unsupported device '%s' found.\n",
3187			    cp->device->vendor);
3188		break;
3189
3190	case CS_DMA:
3191		ql_log(ql_log_info, fcport->vha, 0x3022,
3192		    "CS_DMA error: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%06x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3193		    comp_status, scsi_status, res, vha->host_no,
3194		    cp->device->id, cp->device->lun, fcport->d_id.b24,
3195		    ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3196		    resid_len, fw_resid_len, sp, cp);
3197		ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3198		    pkt, sizeof(*sts24));
3199		res = DID_ERROR << 16;
3200		break;
3201	default:
3202		res = DID_ERROR << 16;
3203		break;
3204	}
3205
3206out:
3207	if (logit)
3208		ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
3209		    "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
3210		    "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
3211		    "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3212		    comp_status, scsi_status, res, vha->host_no,
3213		    cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3214		    fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3215		    cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3216		    resid_len, fw_resid_len, sp, cp);
3217
3218	if (rsp->status_srb == NULL)
3219		sp->done(sp, res);
3220}
3221
3222/**
3223 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3224 * @rsp: response queue
3225 * @pkt: Entry pointer
3226 *
3227 * Extended sense data.
3228 */
3229static void
3230qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3231{
3232	uint8_t	sense_sz = 0;
3233	struct qla_hw_data *ha = rsp->hw;
3234	struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3235	srb_t *sp = rsp->status_srb;
3236	struct scsi_cmnd *cp;
3237	uint32_t sense_len;
3238	uint8_t *sense_ptr;
3239
3240	if (!sp || !GET_CMD_SENSE_LEN(sp))
3241		return;
3242
3243	sense_len = GET_CMD_SENSE_LEN(sp);
3244	sense_ptr = GET_CMD_SENSE_PTR(sp);
3245
3246	cp = GET_CMD_SP(sp);
3247	if (cp == NULL) {
3248		ql_log(ql_log_warn, vha, 0x3025,
3249		    "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3250
3251		rsp->status_srb = NULL;
3252		return;
3253	}
3254
3255	if (sense_len > sizeof(pkt->data))
3256		sense_sz = sizeof(pkt->data);
3257	else
3258		sense_sz = sense_len;
3259
3260	/* Move sense data. */
3261	if (IS_FWI2_CAPABLE(ha))
3262		host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3263	memcpy(sense_ptr, pkt->data, sense_sz);
3264	ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3265		sense_ptr, sense_sz);
3266
3267	sense_len -= sense_sz;
3268	sense_ptr += sense_sz;
3269
3270	SET_CMD_SENSE_PTR(sp, sense_ptr);
3271	SET_CMD_SENSE_LEN(sp, sense_len);
3272
3273	/* Place command on done queue. */
3274	if (sense_len == 0) {
3275		rsp->status_srb = NULL;
3276		sp->done(sp, cp->result);
3277	}
3278}
3279
3280/**
3281 * qla2x00_error_entry() - Process an error entry.
3282 * @vha: SCSI driver HA context
3283 * @rsp: response queue
3284 * @pkt: Entry pointer
3285 * return : 1=allow further error analysis. 0=no additional error analysis.
3286 */
3287static int
3288qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3289{
3290	srb_t *sp;
3291	struct qla_hw_data *ha = vha->hw;
3292	const char func[] = "ERROR-IOCB";
3293	uint16_t que = MSW(pkt->handle);
3294	struct req_que *req = NULL;
3295	int res = DID_ERROR << 16;
3296
3297	ql_dbg(ql_dbg_async, vha, 0x502a,
3298	    "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3299	    pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3300
3301	if (que >= ha->max_req_queues || !ha->req_q_map[que])
3302		goto fatal;
3303
3304	req = ha->req_q_map[que];
3305
3306	if (pkt->entry_status & RF_BUSY)
3307		res = DID_BUS_BUSY << 16;
3308
3309	if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3310		return 0;
3311
3312	switch (pkt->entry_type) {
3313	case NOTIFY_ACK_TYPE:
3314	case STATUS_TYPE:
3315	case STATUS_CONT_TYPE:
3316	case LOGINOUT_PORT_IOCB_TYPE:
3317	case CT_IOCB_TYPE:
3318	case ELS_IOCB_TYPE:
3319	case ABORT_IOCB_TYPE:
3320	case MBX_IOCB_TYPE:
3321	default:
3322		sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3323		if (sp) {
3324			qla_put_iocbs(sp->qpair, &sp->iores);
3325			sp->done(sp, res);
3326			return 0;
3327		}
3328		break;
3329
3330	case ABTS_RESP_24XX:
3331	case CTIO_TYPE7:
3332	case CTIO_CRC2:
3333		return 1;
3334	}
3335fatal:
3336	ql_log(ql_log_warn, vha, 0x5030,
3337	    "Error entry - invalid handle/queue (%04x).\n", que);
3338	return 0;
3339}
3340
3341/**
3342 * qla24xx_mbx_completion() - Process mailbox command completions.
3343 * @vha: SCSI driver HA context
3344 * @mb0: Mailbox0 register
3345 */
3346static void
3347qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3348{
3349	uint16_t	cnt;
3350	uint32_t	mboxes;
3351	__le16 __iomem *wptr;
3352	struct qla_hw_data *ha = vha->hw;
3353	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3354
3355	/* Read all mbox registers? */
3356	WARN_ON_ONCE(ha->mbx_count > 32);
3357	mboxes = (1ULL << ha->mbx_count) - 1;
3358	if (!ha->mcp)
3359		ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3360	else
3361		mboxes = ha->mcp->in_mb;
3362
3363	/* Load return mailbox registers. */
3364	ha->flags.mbox_int = 1;
3365	ha->mailbox_out[0] = mb0;
3366	mboxes >>= 1;
3367	wptr = &reg->mailbox1;
3368
3369	for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3370		if (mboxes & BIT_0)
3371			ha->mailbox_out[cnt] = rd_reg_word(wptr);
3372
3373		mboxes >>= 1;
3374		wptr++;
3375	}
3376}
3377
3378static void
3379qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3380	struct abort_entry_24xx *pkt)
3381{
3382	const char func[] = "ABT_IOCB";
3383	srb_t *sp;
3384	struct srb_iocb *abt;
3385
3386	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3387	if (!sp)
3388		return;
3389
3390	abt = &sp->u.iocb_cmd;
3391	abt->u.abt.comp_status = pkt->nport_handle;
3392	sp->done(sp, 0);
3393}
3394
3395void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3396    struct pt_ls4_request *pkt, struct req_que *req)
3397{
3398	srb_t *sp;
3399	const char func[] = "LS4_IOCB";
3400	uint16_t comp_status;
3401
3402	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3403	if (!sp)
3404		return;
3405
3406	comp_status = le16_to_cpu(pkt->status);
3407	sp->done(sp, comp_status);
3408}
3409
3410/**
3411 * qla24xx_process_response_queue() - Process response queue entries.
3412 * @vha: SCSI driver HA context
3413 * @rsp: response queue
3414 */
3415void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3416	struct rsp_que *rsp)
3417{
3418	struct sts_entry_24xx *pkt;
3419	struct qla_hw_data *ha = vha->hw;
3420	struct purex_entry_24xx *purex_entry;
3421	struct purex_item *pure_item;
3422
3423	if (!ha->flags.fw_started)
3424		return;
3425
3426	if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) {
3427		rsp->qpair->rcv_intr = 1;
3428		qla_cpu_update(rsp->qpair, smp_processor_id());
3429	}
3430
3431	while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3432		pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3433
3434		rsp->ring_index++;
3435		if (rsp->ring_index == rsp->length) {
3436			rsp->ring_index = 0;
3437			rsp->ring_ptr = rsp->ring;
3438		} else {
3439			rsp->ring_ptr++;
3440		}
3441
3442		if (pkt->entry_status != 0) {
3443			if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3444				goto process_err;
3445
3446			((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3447			wmb();
3448			continue;
3449		}
3450process_err:
3451
3452		switch (pkt->entry_type) {
3453		case STATUS_TYPE:
3454			qla2x00_status_entry(vha, rsp, pkt);
3455			break;
3456		case STATUS_CONT_TYPE:
3457			qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3458			break;
3459		case VP_RPT_ID_IOCB_TYPE:
3460			qla24xx_report_id_acquisition(vha,
3461			    (struct vp_rpt_id_entry_24xx *)pkt);
3462			break;
3463		case LOGINOUT_PORT_IOCB_TYPE:
3464			qla24xx_logio_entry(vha, rsp->req,
3465			    (struct logio_entry_24xx *)pkt);
3466			break;
3467		case CT_IOCB_TYPE:
3468			qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3469			break;
3470		case ELS_IOCB_TYPE:
3471			qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3472			break;
3473		case ABTS_RECV_24XX:
3474			if (qla_ini_mode_enabled(vha)) {
3475				pure_item = qla24xx_copy_std_pkt(vha, pkt);
3476				if (!pure_item)
3477					break;
3478				qla24xx_queue_purex_item(vha, pure_item,
3479							 qla24xx_process_abts);
3480				break;
3481			}
3482			if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3483			    IS_QLA28XX(ha)) {
3484				/* ensure that the ATIO queue is empty */
3485				qlt_handle_abts_recv(vha, rsp,
3486				    (response_t *)pkt);
3487				break;
3488			} else {
3489				qlt_24xx_process_atio_queue(vha, 1);
3490			}
3491			fallthrough;
3492		case ABTS_RESP_24XX:
3493		case CTIO_TYPE7:
3494		case CTIO_CRC2:
3495			qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3496			break;
3497		case PT_LS4_REQUEST:
3498			qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3499			    rsp->req);
3500			break;
3501		case NOTIFY_ACK_TYPE:
3502			if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3503				qlt_response_pkt_all_vps(vha, rsp,
3504				    (response_t *)pkt);
3505			else
3506				qla24xxx_nack_iocb_entry(vha, rsp->req,
3507					(struct nack_to_isp *)pkt);
3508			break;
3509		case MARKER_TYPE:
3510			/* Do nothing in this case, this check is to prevent it
3511			 * from falling into default case
3512			 */
3513			break;
3514		case ABORT_IOCB_TYPE:
3515			qla24xx_abort_iocb_entry(vha, rsp->req,
3516			    (struct abort_entry_24xx *)pkt);
3517			break;
3518		case MBX_IOCB_TYPE:
3519			qla24xx_mbx_iocb_entry(vha, rsp->req,
3520			    (struct mbx_24xx_entry *)pkt);
3521			break;
3522		case VP_CTRL_IOCB_TYPE:
3523			qla_ctrlvp_completed(vha, rsp->req,
3524			    (struct vp_ctrl_entry_24xx *)pkt);
3525			break;
3526		case PUREX_IOCB_TYPE:
3527			purex_entry = (void *)pkt;
3528			switch (purex_entry->els_frame_payload[3]) {
3529			case ELS_RDP:
3530				pure_item = qla24xx_copy_std_pkt(vha, pkt);
3531				if (!pure_item)
3532					break;
3533				qla24xx_queue_purex_item(vha, pure_item,
3534						 qla24xx_process_purex_rdp);
3535				break;
3536			case ELS_FPIN:
3537				if (!vha->hw->flags.scm_enabled) {
3538					ql_log(ql_log_warn, vha, 0x5094,
3539					       "SCM not active for this port\n");
3540					break;
3541				}
3542				pure_item = qla27xx_copy_fpin_pkt(vha,
3543							  (void **)&pkt, &rsp);
3544				if (!pure_item)
3545					break;
3546				qla24xx_queue_purex_item(vha, pure_item,
3547						 qla27xx_process_purex_fpin);
3548				break;
3549
3550			default:
3551				ql_log(ql_log_warn, vha, 0x509c,
3552				       "Discarding ELS Request opcode 0x%x\n",
3553				       purex_entry->els_frame_payload[3]);
3554			}
3555			break;
3556		default:
3557			/* Type Not Supported. */
3558			ql_dbg(ql_dbg_async, vha, 0x5042,
3559			       "Received unknown response pkt type 0x%x entry status=%x.\n",
3560			       pkt->entry_type, pkt->entry_status);
3561			break;
3562		}
3563		((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3564		wmb();
3565	}
3566
3567	/* Adjust ring index */
3568	if (IS_P3P_TYPE(ha)) {
3569		struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3570
3571		wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
3572	} else {
3573		wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
3574	}
3575}
3576
3577static void
3578qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3579{
3580	int rval;
3581	uint32_t cnt;
3582	struct qla_hw_data *ha = vha->hw;
3583	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3584
3585	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3586	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3587		return;
3588
3589	rval = QLA_SUCCESS;
3590	wrt_reg_dword(&reg->iobase_addr, 0x7C00);
3591	rd_reg_dword(&reg->iobase_addr);
3592	wrt_reg_dword(&reg->iobase_window, 0x0001);
3593	for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3594	    rval == QLA_SUCCESS; cnt--) {
3595		if (cnt) {
3596			wrt_reg_dword(&reg->iobase_window, 0x0001);
3597			udelay(10);
3598		} else
3599			rval = QLA_FUNCTION_TIMEOUT;
3600	}
3601	if (rval == QLA_SUCCESS)
3602		goto next_test;
3603
3604	rval = QLA_SUCCESS;
3605	wrt_reg_dword(&reg->iobase_window, 0x0003);
3606	for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3607	    rval == QLA_SUCCESS; cnt--) {
3608		if (cnt) {
3609			wrt_reg_dword(&reg->iobase_window, 0x0003);
3610			udelay(10);
3611		} else
3612			rval = QLA_FUNCTION_TIMEOUT;
3613	}
3614	if (rval != QLA_SUCCESS)
3615		goto done;
3616
3617next_test:
3618	if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
3619		ql_log(ql_log_info, vha, 0x504c,
3620		    "Additional code -- 0x55AA.\n");
3621
3622done:
3623	wrt_reg_dword(&reg->iobase_window, 0x0000);
3624	rd_reg_dword(&reg->iobase_window);
3625}
3626
3627/**
3628 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3629 * @irq: interrupt number
3630 * @dev_id: SCSI driver HA context
3631 *
3632 * Called by system whenever the host adapter generates an interrupt.
3633 *
3634 * Returns handled flag.
3635 */
3636irqreturn_t
3637qla24xx_intr_handler(int irq, void *dev_id)
3638{
3639	scsi_qla_host_t	*vha;
3640	struct qla_hw_data *ha;
3641	struct device_reg_24xx __iomem *reg;
3642	int		status;
3643	unsigned long	iter;
3644	uint32_t	stat;
3645	uint32_t	hccr;
3646	uint16_t	mb[8];
3647	struct rsp_que *rsp;
3648	unsigned long	flags;
3649	bool process_atio = false;
3650
3651	rsp = (struct rsp_que *) dev_id;
3652	if (!rsp) {
3653		ql_log(ql_log_info, NULL, 0x5059,
3654		    "%s: NULL response queue pointer.\n", __func__);
3655		return IRQ_NONE;
3656	}
3657
3658	ha = rsp->hw;
3659	reg = &ha->iobase->isp24;
3660	status = 0;
3661
3662	if (unlikely(pci_channel_offline(ha->pdev)))
3663		return IRQ_HANDLED;
3664
3665	spin_lock_irqsave(&ha->hardware_lock, flags);
3666	vha = pci_get_drvdata(ha->pdev);
3667	for (iter = 50; iter--; ) {
3668		stat = rd_reg_dword(&reg->host_status);
3669		if (qla2x00_check_reg32_for_disconnect(vha, stat))
3670			break;
3671		if (stat & HSRX_RISC_PAUSED) {
3672			if (unlikely(pci_channel_offline(ha->pdev)))
3673				break;
3674
3675			hccr = rd_reg_dword(&reg->hccr);
3676
3677			ql_log(ql_log_warn, vha, 0x504b,
3678			    "RISC paused -- HCCR=%x, Dumping firmware.\n",
3679			    hccr);
3680
3681			qla2xxx_check_risc_status(vha);
3682
3683			ha->isp_ops->fw_dump(vha);
3684			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3685			break;
3686		} else if ((stat & HSRX_RISC_INT) == 0)
3687			break;
3688
3689		switch (stat & 0xff) {
3690		case INTR_ROM_MB_SUCCESS:
3691		case INTR_ROM_MB_FAILED:
3692		case INTR_MB_SUCCESS:
3693		case INTR_MB_FAILED:
3694			qla24xx_mbx_completion(vha, MSW(stat));
3695			status |= MBX_INTERRUPT;
3696
3697			break;
3698		case INTR_ASYNC_EVENT:
3699			mb[0] = MSW(stat);
3700			mb[1] = rd_reg_word(&reg->mailbox1);
3701			mb[2] = rd_reg_word(&reg->mailbox2);
3702			mb[3] = rd_reg_word(&reg->mailbox3);
3703			qla2x00_async_event(vha, rsp, mb);
3704			break;
3705		case INTR_RSP_QUE_UPDATE:
3706		case INTR_RSP_QUE_UPDATE_83XX:
3707			qla24xx_process_response_queue(vha, rsp);
3708			break;
3709		case INTR_ATIO_QUE_UPDATE_27XX:
3710		case INTR_ATIO_QUE_UPDATE:
3711			process_atio = true;
3712			break;
3713		case INTR_ATIO_RSP_QUE_UPDATE:
3714			process_atio = true;
3715			qla24xx_process_response_queue(vha, rsp);
3716			break;
3717		default:
3718			ql_dbg(ql_dbg_async, vha, 0x504f,
3719			    "Unrecognized interrupt type (%d).\n", stat * 0xff);
3720			break;
3721		}
3722		wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3723		rd_reg_dword_relaxed(&reg->hccr);
3724		if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3725			ndelay(3500);
3726	}
3727	qla2x00_handle_mbx_completion(ha, status);
3728	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3729
3730	if (process_atio) {
3731		spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3732		qlt_24xx_process_atio_queue(vha, 0);
3733		spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3734	}
3735
3736	return IRQ_HANDLED;
3737}
3738
3739static irqreturn_t
3740qla24xx_msix_rsp_q(int irq, void *dev_id)
3741{
3742	struct qla_hw_data *ha;
3743	struct rsp_que *rsp;
3744	struct device_reg_24xx __iomem *reg;
3745	struct scsi_qla_host *vha;
3746	unsigned long flags;
3747
3748	rsp = (struct rsp_que *) dev_id;
3749	if (!rsp) {
3750		ql_log(ql_log_info, NULL, 0x505a,
3751		    "%s: NULL response queue pointer.\n", __func__);
3752		return IRQ_NONE;
3753	}
3754	ha = rsp->hw;
3755	reg = &ha->iobase->isp24;
3756
3757	spin_lock_irqsave(&ha->hardware_lock, flags);
3758
3759	vha = pci_get_drvdata(ha->pdev);
3760	qla24xx_process_response_queue(vha, rsp);
3761	if (!ha->flags.disable_msix_handshake) {
3762		wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3763		rd_reg_dword_relaxed(&reg->hccr);
3764	}
3765	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3766
3767	return IRQ_HANDLED;
3768}
3769
3770static irqreturn_t
3771qla24xx_msix_default(int irq, void *dev_id)
3772{
3773	scsi_qla_host_t	*vha;
3774	struct qla_hw_data *ha;
3775	struct rsp_que *rsp;
3776	struct device_reg_24xx __iomem *reg;
3777	int		status;
3778	uint32_t	stat;
3779	uint32_t	hccr;
3780	uint16_t	mb[8];
3781	unsigned long flags;
3782	bool process_atio = false;
3783
3784	rsp = (struct rsp_que *) dev_id;
3785	if (!rsp) {
3786		ql_log(ql_log_info, NULL, 0x505c,
3787		    "%s: NULL response queue pointer.\n", __func__);
3788		return IRQ_NONE;
3789	}
3790	ha = rsp->hw;
3791	reg = &ha->iobase->isp24;
3792	status = 0;
3793
3794	spin_lock_irqsave(&ha->hardware_lock, flags);
3795	vha = pci_get_drvdata(ha->pdev);
3796	do {
3797		stat = rd_reg_dword(&reg->host_status);
3798		if (qla2x00_check_reg32_for_disconnect(vha, stat))
3799			break;
3800		if (stat & HSRX_RISC_PAUSED) {
3801			if (unlikely(pci_channel_offline(ha->pdev)))
3802				break;
3803
3804			hccr = rd_reg_dword(&reg->hccr);
3805
3806			ql_log(ql_log_info, vha, 0x5050,
3807			    "RISC paused -- HCCR=%x, Dumping firmware.\n",
3808			    hccr);
3809
3810			qla2xxx_check_risc_status(vha);
3811
3812			ha->isp_ops->fw_dump(vha);
3813			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3814			break;
3815		} else if ((stat & HSRX_RISC_INT) == 0)
3816			break;
3817
3818		switch (stat & 0xff) {
3819		case INTR_ROM_MB_SUCCESS:
3820		case INTR_ROM_MB_FAILED:
3821		case INTR_MB_SUCCESS:
3822		case INTR_MB_FAILED:
3823			qla24xx_mbx_completion(vha, MSW(stat));
3824			status |= MBX_INTERRUPT;
3825
3826			break;
3827		case INTR_ASYNC_EVENT:
3828			mb[0] = MSW(stat);
3829			mb[1] = rd_reg_word(&reg->mailbox1);
3830			mb[2] = rd_reg_word(&reg->mailbox2);
3831			mb[3] = rd_reg_word(&reg->mailbox3);
3832			qla2x00_async_event(vha, rsp, mb);
3833			break;
3834		case INTR_RSP_QUE_UPDATE:
3835		case INTR_RSP_QUE_UPDATE_83XX:
3836			qla24xx_process_response_queue(vha, rsp);
3837			break;
3838		case INTR_ATIO_QUE_UPDATE_27XX:
3839		case INTR_ATIO_QUE_UPDATE:
3840			process_atio = true;
3841			break;
3842		case INTR_ATIO_RSP_QUE_UPDATE:
3843			process_atio = true;
3844			qla24xx_process_response_queue(vha, rsp);
3845			break;
3846		default:
3847			ql_dbg(ql_dbg_async, vha, 0x5051,
3848			    "Unrecognized interrupt type (%d).\n", stat & 0xff);
3849			break;
3850		}
3851		wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3852	} while (0);
3853	qla2x00_handle_mbx_completion(ha, status);
3854	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3855
3856	if (process_atio) {
3857		spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3858		qlt_24xx_process_atio_queue(vha, 0);
3859		spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3860	}
3861
3862	return IRQ_HANDLED;
3863}
3864
3865irqreturn_t
3866qla2xxx_msix_rsp_q(int irq, void *dev_id)
3867{
3868	struct qla_hw_data *ha;
3869	struct qla_qpair *qpair;
3870
3871	qpair = dev_id;
3872	if (!qpair) {
3873		ql_log(ql_log_info, NULL, 0x505b,
3874		    "%s: NULL response queue pointer.\n", __func__);
3875		return IRQ_NONE;
3876	}
3877	ha = qpair->hw;
3878
3879	queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3880
3881	return IRQ_HANDLED;
3882}
3883
3884irqreturn_t
3885qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
3886{
3887	struct qla_hw_data *ha;
3888	struct qla_qpair *qpair;
3889	struct device_reg_24xx __iomem *reg;
3890	unsigned long flags;
3891
3892	qpair = dev_id;
3893	if (!qpair) {
3894		ql_log(ql_log_info, NULL, 0x505b,
3895		    "%s: NULL response queue pointer.\n", __func__);
3896		return IRQ_NONE;
3897	}
3898	ha = qpair->hw;
3899
3900	reg = &ha->iobase->isp24;
3901	spin_lock_irqsave(&ha->hardware_lock, flags);
3902	wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3903	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3904
3905	queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3906
3907	return IRQ_HANDLED;
3908}
3909
3910/* Interrupt handling helpers. */
3911
3912struct qla_init_msix_entry {
3913	const char *name;
3914	irq_handler_t handler;
3915};
3916
3917static const struct qla_init_msix_entry msix_entries[] = {
3918	{ "default", qla24xx_msix_default },
3919	{ "rsp_q", qla24xx_msix_rsp_q },
3920	{ "atio_q", qla83xx_msix_atio_q },
3921	{ "qpair_multiq", qla2xxx_msix_rsp_q },
3922	{ "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
3923};
3924
3925static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3926	{ "qla2xxx (default)", qla82xx_msix_default },
3927	{ "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3928};
3929
3930static int
3931qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3932{
3933	int i, ret;
3934	struct qla_msix_entry *qentry;
3935	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3936	int min_vecs = QLA_BASE_VECTORS;
3937	struct irq_affinity desc = {
3938		.pre_vectors = QLA_BASE_VECTORS,
3939	};
3940
3941	if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3942	    IS_ATIO_MSIX_CAPABLE(ha)) {
3943		desc.pre_vectors++;
3944		min_vecs++;
3945	}
3946
3947	if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
3948		/* user wants to control IRQ setting for target mode */
3949		ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3950		    ha->msix_count, PCI_IRQ_MSIX);
3951	} else
3952		ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3953		    ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3954		    &desc);
3955
3956	if (ret < 0) {
3957		ql_log(ql_log_fatal, vha, 0x00c7,
3958		    "MSI-X: Failed to enable support, "
3959		    "giving   up -- %d/%d.\n",
3960		    ha->msix_count, ret);
3961		goto msix_out;
3962	} else if (ret < ha->msix_count) {
3963		ql_log(ql_log_info, vha, 0x00c6,
3964		    "MSI-X: Using %d vectors\n", ret);
3965		ha->msix_count = ret;
3966		/* Recalculate queue values */
3967		if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
3968			ha->max_req_queues = ha->msix_count - 1;
3969
3970			/* ATIOQ needs 1 vector. That's 1 less QPair */
3971			if (QLA_TGT_MODE_ENABLED())
3972				ha->max_req_queues--;
3973
3974			ha->max_rsp_queues = ha->max_req_queues;
3975
3976			ha->max_qpairs = ha->max_req_queues - 1;
3977			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3978			    "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3979		}
3980	}
3981	vha->irq_offset = desc.pre_vectors;
3982	ha->msix_entries = kcalloc(ha->msix_count,
3983				   sizeof(struct qla_msix_entry),
3984				   GFP_KERNEL);
3985	if (!ha->msix_entries) {
3986		ql_log(ql_log_fatal, vha, 0x00c8,
3987		    "Failed to allocate memory for ha->msix_entries.\n");
3988		ret = -ENOMEM;
3989		goto free_irqs;
3990	}
3991	ha->flags.msix_enabled = 1;
3992
3993	for (i = 0; i < ha->msix_count; i++) {
3994		qentry = &ha->msix_entries[i];
3995		qentry->vector = pci_irq_vector(ha->pdev, i);
3996		qentry->entry = i;
3997		qentry->have_irq = 0;
3998		qentry->in_use = 0;
3999		qentry->handle = NULL;
4000	}
4001
4002	/* Enable MSI-X vectors for the base queue */
4003	for (i = 0; i < QLA_BASE_VECTORS; i++) {
4004		qentry = &ha->msix_entries[i];
4005		qentry->handle = rsp;
4006		rsp->msix = qentry;
4007		scnprintf(qentry->name, sizeof(qentry->name),
4008		    "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
4009		if (IS_P3P_TYPE(ha))
4010			ret = request_irq(qentry->vector,
4011				qla82xx_msix_entries[i].handler,
4012				0, qla82xx_msix_entries[i].name, rsp);
4013		else
4014			ret = request_irq(qentry->vector,
4015				msix_entries[i].handler,
4016				0, qentry->name, rsp);
4017		if (ret)
4018			goto msix_register_fail;
4019		qentry->have_irq = 1;
4020		qentry->in_use = 1;
4021	}
4022
4023	/*
4024	 * If target mode is enable, also request the vector for the ATIO
4025	 * queue.
4026	 */
4027	if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4028	    IS_ATIO_MSIX_CAPABLE(ha)) {
4029		qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
4030		rsp->msix = qentry;
4031		qentry->handle = rsp;
4032		scnprintf(qentry->name, sizeof(qentry->name),
4033		    "qla2xxx%lu_%s", vha->host_no,
4034		    msix_entries[QLA_ATIO_VECTOR].name);
4035		qentry->in_use = 1;
4036		ret = request_irq(qentry->vector,
4037			msix_entries[QLA_ATIO_VECTOR].handler,
4038			0, qentry->name, rsp);
4039		qentry->have_irq = 1;
4040	}
4041
4042msix_register_fail:
4043	if (ret) {
4044		ql_log(ql_log_fatal, vha, 0x00cb,
4045		    "MSI-X: unable to register handler -- %x/%d.\n",
4046		    qentry->vector, ret);
4047		qla2x00_free_irqs(vha);
4048		ha->mqenable = 0;
4049		goto msix_out;
4050	}
4051
4052	/* Enable MSI-X vector for response queue update for queue 0 */
4053	if (IS_MQUE_CAPABLE(ha) &&
4054	    (ha->msixbase && ha->mqiobase && ha->max_qpairs))
4055		ha->mqenable = 1;
4056	else
4057		ha->mqenable = 0;
4058
4059	ql_dbg(ql_dbg_multiq, vha, 0xc005,
4060	    "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4061	    ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4062	ql_dbg(ql_dbg_init, vha, 0x0055,
4063	    "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4064	    ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4065
4066msix_out:
4067	return ret;
4068
4069free_irqs:
4070	pci_free_irq_vectors(ha->pdev);
4071	goto msix_out;
4072}
4073
4074int
4075qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
4076{
4077	int ret = QLA_FUNCTION_FAILED;
4078	device_reg_t *reg = ha->iobase;
4079	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4080
4081	/* If possible, enable MSI-X. */
4082	if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
4083	    !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
4084	    !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
4085		goto skip_msi;
4086
4087	if (ql2xenablemsix == 2)
4088		goto skip_msix;
4089
4090	if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
4091		(ha->pdev->subsystem_device == 0x7040 ||
4092		ha->pdev->subsystem_device == 0x7041 ||
4093		ha->pdev->subsystem_device == 0x1705)) {
4094		ql_log(ql_log_warn, vha, 0x0034,
4095		    "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
4096			ha->pdev->subsystem_vendor,
4097			ha->pdev->subsystem_device);
4098		goto skip_msi;
4099	}
4100
4101	if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
4102		ql_log(ql_log_warn, vha, 0x0035,
4103		    "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
4104		    ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
4105		goto skip_msix;
4106	}
4107
4108	ret = qla24xx_enable_msix(ha, rsp);
4109	if (!ret) {
4110		ql_dbg(ql_dbg_init, vha, 0x0036,
4111		    "MSI-X: Enabled (0x%X, 0x%X).\n",
4112		    ha->chip_revision, ha->fw_attributes);
4113		goto clear_risc_ints;
4114	}
4115
4116skip_msix:
4117
4118	ql_log(ql_log_info, vha, 0x0037,
4119	    "Falling back-to MSI mode -- ret=%d.\n", ret);
4120
4121	if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
4122	    !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
4123	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4124		goto skip_msi;
4125
4126	ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
4127	if (ret > 0) {
4128		ql_dbg(ql_dbg_init, vha, 0x0038,
4129		    "MSI: Enabled.\n");
4130		ha->flags.msi_enabled = 1;
4131	} else
4132		ql_log(ql_log_warn, vha, 0x0039,
4133		    "Falling back-to INTa mode -- ret=%d.\n", ret);
4134skip_msi:
4135
4136	/* Skip INTx on ISP82xx. */
4137	if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
4138		return QLA_FUNCTION_FAILED;
4139
4140	ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
4141	    ha->flags.msi_enabled ? 0 : IRQF_SHARED,
4142	    QLA2XXX_DRIVER_NAME, rsp);
4143	if (ret) {
4144		ql_log(ql_log_warn, vha, 0x003a,
4145		    "Failed to reserve interrupt %d already in use.\n",
4146		    ha->pdev->irq);
4147		goto fail;
4148	} else if (!ha->flags.msi_enabled) {
4149		ql_dbg(ql_dbg_init, vha, 0x0125,
4150		    "INTa mode: Enabled.\n");
4151		ha->flags.mr_intr_valid = 1;
4152		/* Set max_qpair to 0, as MSI-X and MSI in not enabled */
4153		ha->max_qpairs = 0;
4154	}
4155
4156clear_risc_ints:
4157	if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
4158		goto fail;
4159
4160	spin_lock_irq(&ha->hardware_lock);
4161	wrt_reg_word(&reg->isp.semaphore, 0);
4162	spin_unlock_irq(&ha->hardware_lock);
4163
4164fail:
4165	return ret;
4166}
4167
4168void
4169qla2x00_free_irqs(scsi_qla_host_t *vha)
4170{
4171	struct qla_hw_data *ha = vha->hw;
4172	struct rsp_que *rsp;
4173	struct qla_msix_entry *qentry;
4174	int i;
4175
4176	/*
4177	 * We need to check that ha->rsp_q_map is valid in case we are called
4178	 * from a probe failure context.
4179	 */
4180	if (!ha->rsp_q_map || !ha->rsp_q_map[0])
4181		goto free_irqs;
4182	rsp = ha->rsp_q_map[0];
4183
4184	if (ha->flags.msix_enabled) {
4185		for (i = 0; i < ha->msix_count; i++) {
4186			qentry = &ha->msix_entries[i];
4187			if (qentry->have_irq) {
4188				irq_set_affinity_notifier(qentry->vector, NULL);
4189				free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
4190			}
4191		}
4192		kfree(ha->msix_entries);
4193		ha->msix_entries = NULL;
4194		ha->flags.msix_enabled = 0;
4195		ql_dbg(ql_dbg_init, vha, 0x0042,
4196			"Disabled MSI-X.\n");
4197	} else {
4198		free_irq(pci_irq_vector(ha->pdev, 0), rsp);
4199	}
4200
4201free_irqs:
4202	pci_free_irq_vectors(ha->pdev);
4203}
4204
4205int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
4206	struct qla_msix_entry *msix, int vector_type)
4207{
4208	const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
4209	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4210	int ret;
4211
4212	scnprintf(msix->name, sizeof(msix->name),
4213	    "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
4214	ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
4215	if (ret) {
4216		ql_log(ql_log_fatal, vha, 0x00e6,
4217		    "MSI-X: Unable to register handler -- %x/%d.\n",
4218		    msix->vector, ret);
4219		return ret;
4220	}
4221	msix->have_irq = 1;
4222	msix->handle = qpair;
4223	return ret;
4224}
4225